Polona Hercog
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Polona Hercog (, born 20 January 1991) is a Slovenian professional tennis player. Her career-high WTA rankings are 35 in singles and 56 in doubles. She has won five titles on the
WTA Tour The WTA Tour is a worldwide top-tier tennis tour for women organized by the Women's Tennis Association. The second-tier tour is the WTA 125K series, and third-tier is the ITF Women's Circuit. The men's equivalent is the ATP Tour. WTA Tour tou ...
, three in singles and two in doubles. Hercog also enjoyed success on the
ITF Women's Circuit The ITF Women's World Tennis Tour, previously known as the ITF Women's Circuit, is a series of professional tennis tournaments run by the International Tennis Federation for female professional tennis players. History It serves as a developmental ...
, winning 18 singles and five doubles titles. Partnering with Jessica Moore, she won the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
and
Wimbledon Championships The Wimbledon Championships, commonly known simply as Wimbledon, is the oldest tennis tournament in the world and is widely regarded as the most prestigious. It has been held at the All England Club in Wimbledon, London, since 1877 and is pla ...
junior titles in the doubles competition in 2008.


Early and personal life

Hercog was born in
Maribor Maribor ( , , , ; also known by other historical names) is the second-largest city in Slovenia and the largest city of the traditional region of Lower Styria. It is also the seat of the City Municipality of Maribor, the seat of the Drava sta ...
, Slovenia, to florist Romana and bar owner Vojko.Sony Ericsson WTA Tour, Players, Info (Biography), Polona Hercog
As a four-year-old she began playing in the local tennis clinic opened by Mima Jaušovec, and at age 14 moved to Italy to train professionally.Official Website: About Polona
Hercog is fluent in Slovenian, English, and Italian, and cites Justine Henin as her role model. She currently resides in her hometown and practises in
Budapest Budapest (, ; ) is the capital and most populous city of Hungary. It is the ninth-largest city in the European Union by population within city limits and the second-largest city on the Danube river; the city has an estimated population o ...
.Official Website: Interview with Polona


Career summary


2007—2009

Hercog made her
WTA Tour The WTA Tour is a worldwide top-tier tennis tour for women organized by the Women's Tennis Association. The second-tier tour is the WTA 125K series, and third-tier is the ITF Women's Circuit. The men's equivalent is the ATP Tour. WTA Tour tou ...
debut at the Slovenia Open, losing to
Elena Vesnina Elena Sergeyevna Vesnina (born 1 August 1986) is a Russian former professional tennis player and a former world No. 1 in doubles. She is a four-time Grand Slam champion, having won the 2013 French Open, 2014 US Open, and 2017 Wimbledon Cha ...
in three sets. In 2008, she participated in the İstanbul Cup, where she lost in the first round to Tsvetana Pironkova, but reached the finals of the doubles competition partnering with New Zealand's Marina Erakovic. The same year, Hercog and Australian Jessica Moore won two Grand Slam junior doubles titles, the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
and the
Wimbledon Championships The Wimbledon Championships, commonly known simply as Wimbledon, is the oldest tennis tournament in the world and is widely regarded as the most prestigious. It has been held at the All England Club in Wimbledon, London, since 1877 and is pla ...
. She also played qualifying at the US Open, but lost to Sandra Záhlavová in the first round, in straight sets.2008 US Open Qualifying Draw
at the
International Tennis Federation The International Tennis Federation (ITF) is the governing body of world tennis, wheelchair tennis, and beach tennis. It was founded in 1913 as the International Lawn Tennis Federation by twelve national tennis associations. As of 2016, there ...
Hercog entered the 2009 Morocco Open in Fes via qualifying, and beat seventh seed Roberta Vinci to reach the quarterfinals, where she was defeated by
Alisa Kleybanova Alisa Mikhailovna Kleybanova (russian: Алиса Михайловна Клейбанова, born 15 July 1989) is a Russian former tennis player. Her career-high singles ranking is world No. 20, achieved in February 2011. In her career. she wo ...
. At that year's
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
, she upset 23rd seeded Kleybanova, but was in turn beaten by Aravane Rezaï. At the US Open, Hercog was beaten by American wildcard
Christina McHale Christina Marietta McHale (born May 11, 1992) is an American former professional tennis player. Her highest-ever WTA rankings were No. 24 in singles and No. 35 in doubles. Known for an aggressive baseline game, McHale was recognized by ''The New ...
, in the first round. She also played the Luxembourg Open, defeating Maria Elena Camerin in the opening round. She then lost to
Sabine Lisicki Sabine Katharina Lisicki (; born 22 September 1989) is a German professional tennis player. Lisicki turned professional in 2006, and her breakthrough came in 2009 when she reached the quarterfinals of the Wimbledon Championships, and also won ...
in two sets. Polona managed to make it up to the second round at the 2009 Allianz Cup in
Sofia Sofia ( ; bg, София, Sofiya, ) is the capital and largest city of Bulgaria. It is situated in the Sofia Valley at the foot of the Vitosha mountain in the western parts of the country. The city is built west of the Iskar river, and h ...
but was beaten by Bojana Jovanovski.


2010

Hercog began season at the Auckland Open where she lost to
Shahar Pe'er Shahar Pe'er ( he, שחר פאר, ; born ) is an Israeli retired tennis player. Pe'er won five singles and three doubles titles on the WTA Tour, as well as four singles and three doubles titles on the ITF circuit in her career. She reache ...
in the first round. At the Mexican Open in Acapulco, Hercog reached her first WTA Tour singles final and won her first WTA doubles title. She defeated Rossana de los Ríos in the first round,
Alizé Cornet Alizé Cornet (; born 22 January 1990) is a French professional tennis player. Cornet has won six singles and three doubles titles on the WTA Tour, as well as three singles and three doubles titles on the ITF Circuit. On 16 February 2009, she ...
in the second,
Ágnes Szávay Ágnes Szávay ( hu, Szávay Ágnes, ; born 29 December 1988) is a former professional tennis player from Hungary. The 2007 WTA Newcomer of the Year achieved her career-high ranking of world No. 13 in April 2008. Personal life Szávay was bor ...
retired from the quarterfinals match when Hercog was leading by a set, and Carla Suárez Navarro in two sets in the semifinals. Sony Ericsson WTA Tour
Hercog Awaits In Final
(26 February 2010)
In the final, she lost to top seed and former world No. 1,
Venus Williams Venus Ebony Starr Williams (born June 17, 1980) is an American professional tennis player. A former world No. 1 in both singles and doubles, Williams has won seven Grand Slam singles titles, five at Wimbledon and two at the US Open. She is ...
, despite winning the first set. Sony Ericsson WTA Tour
Venus: Queen of Acapulco
(27 February 2010)
Partnering with Barbora Záhlavová-Strýcová, she won her first tour doubles title, beating the Italian duo Sara Errani and Roberta Vinci. At the
Indian Wells Open The Indian Wells Masters, also known as the Indian Wells Open and BNP Paribas Open is an annual tennis tournament usually held in early- and mid-March at the Indian Wells Tennis Garden in Indian Wells, California, United States. The owner is La ...
, Hercog defeated Raluca Olaru in the first round and was defeated by 11th seed
Marion Bartoli Marion Bartoli (; born 2 October 1984) is a French former professional tennis player. Bartoli won the 2013 Wimbledon Championships singles title after previously being runner-up in 2007, and was a semifinalist at the 2011 French Open. She also ...
in the second round. She caused an upset in the second round of the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
by defeating No. 24,
Lucie Šafářová Lucie Šafářová (; born 4 February 1987) is a Czech former professional tennis player who was ranked world No. 1 in doubles, and No. 5 in singles. She is a five-time Grand Slam champion in doubles, having won the 2015 Australian Open, 2015 ...
. In Portorož, she reached the semifinals, was up a set against Anna Chakvetadze but then lost the match in three sets. Seeded sixth at the
Danish Open Danish Open may refer to: * Denmark Open a badminton tournament * Danish Open (golf) The Danish Open was the national open golf tournament of Denmark. In 1991, from 1993–1997 and from 2000–2004 it was an event on the Challenge Tour The Cha ...
in Copenhagen, she had a chance to take revenge on Anna Chakvetadze as they met in the quarterfinals. Hercog lost the match, this time in straight sets.


2011

Hercog began the year at the
Brisbane International The Brisbane International established in 2009 is a professional tennis tournament played on outdoor hardcourts in Brisbane, Queensland in Australia. It is a WTA Premier tournament of the WTA Tour and was part of the ATP World Tour 250 serie ...
where she lost in the first round to Iveta Benešová in two sets. Seeded second in qualifying at the Sydney International, Hercog lost in the first round to
Jill Craybas Jill N. Craybas (born July 4, 1974) is an American former professional tennis player. From the 2000 US Open to the 2011 US Open, Craybas competed in 45 consecutive Grand Slam main draws; her best result coming in the 2005 Wimbledon Championship ...
. At the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
, she lost in the first round in a close match to world No. 46, Anastasija Sevastova. After the Australian Open, Hercog played at the 2011 Fed Cup World Group II against
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwee ...
. She defeated
Julia Görges Julia Görges (born 2 November 1988) is a German former professional tennis player. A former top-ten singles player, she was ranked as high as No. 9 in the world on 20 August 2018, and was ranked inside the top 15 in doubles, peaking at world No ...
, however, she lost to Andrea Petkovic in straight sets.
Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...
lost to Germany 1-4. Seeded second at the Copa Colsanitas, she defeated Pauline Parmentier in the first round. In the second round, she lost to
Petra Martić Petra Martić (; born 19 January 1991) is a Croatian professional tennis player. She has a career-high singles ranking of world No. 14, achieved in January 2020. Martić has won two singles titles on the WTA Tour, one singles and one doubles to ...
. Seeded second at the Abierto Mexicano, Hercog lost in the first round to Lourdes Domínguez Lino. She then stayed in Mexico for the Monterrey Open. Seeded eighth, Hercog defeated Angelique Kerber in the first round 6–3, 6–3. She then reached the semifinals where she lost to top seed
Jelena Janković Jelena Janković ( sr-Cyrl, Јелена Јанковић, ; born 28 February 1985) is a Serbian former tennis player. A former world No. 1, Janković reached the top ranking before her career-best major performance, a runner-up finish at the ...
in two sets. At the
Indian Wells Open The Indian Wells Masters, also known as the Indian Wells Open and BNP Paribas Open is an annual tennis tournament usually held in early- and mid-March at the Indian Wells Tennis Garden in Indian Wells, California, United States. The owner is La ...
, Hercog lost in the first round to Anastasija Sevastova. At the Miami Open, she lost in the first round to
Chanelle Scheepers Chanelle Scheepers ( ; born 13 March 1984) is a retired South African tennis player. She won one singles and one doubles title on the WTA Tour, as well as 12 singles and 20 doubles titles on the ITF Women's Circuit in her career. On 10 Octobe ...
in three sets. Hercog began her clay-court season at the
Andalucia Tennis Experience The Andalucia Tennis Experience was a professional women's tennis tournament played on outdoor clay courts. The inaugural edition was in 2009. The event is affiliated with the Women's Tennis Association (WTA) and is an International tournament o ...
. She lost in the first round to Laura Pous Tió, 1–6, 2–6. Next, Hercog played at the Morocco Open where she got revenge on Chanelle Scheepers by defeating her in the first round. However, she withdrew from her second-round match against Melanie Oudin due to an ankle injury. At the Barcelona Open, Hercog won her first-round match against lucky loser
Jamie Hampton Jamie Lee Hampton (born January 8, 1990) is a former American professional tennis player. In July 2013, she reached her highest singles ranking of world No. 24. Early life Hampton was born in Frankfurt, West Germany, because her father, a caree ...
. In the second round, she easily beat Mirjana Lučić. In the quarterfinals, she lost to Laura Pous Tió in three sets.


2012

Hercog began the year at the
Brisbane International The Brisbane International established in 2009 is a professional tennis tournament played on outdoor hardcourts in Brisbane, Queensland in Australia. It is a WTA Premier tournament of the WTA Tour and was part of the ATP World Tour 250 serie ...
. She retired trailing 6–1, 4-1 in her first-round match against seventh seed
Anastasia Pavlyuchenkova Anastasia Sergeyevna "Nastia" Pavlyuchenkova (russian: Анастаси́я "Настя" Серге́евна Павлюче́нкова; born 3 July 1991) is an inactive Russian professional tennis player. A junior prodigy, Pavlyuchenkova won ...
due to a low back injury. Seeded third in qualifying at the Sydney International, Hercog lost in the final round of qualifying to seventh seed
Ekaterina Makarova Ekaterina Valeryevna Makarova ( rus, Екатери́на Вале́рьевна Мака́рова; ; born 7 June 1988) is a Russian former professional tennis player who was ranked world No. 1 in doubles, and world No. 8 in singles. She ...
. However, she received a lucky loser spot into the main draw. In the first round, Hercog lost to eighth seed Marion Bartoli. At the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
, she lost in the first round to 22nd seed Julia Görges. After the Australian Open, Hercog represented
Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...
for Fed Cup against
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
. She lost both of her rubbers to
Kimiko Date-Krumm is a Japanese former professional tennis player. She reached the semifinals of the 1994 Australian Open, the 1995 French Open and the 1996 Wimbledon Championships, and won the Japan Open a record four times. She reached a career-high ranking ...
and
Ayumi Morita is a Japanese tennis player. She reached her career-high ranking of number 40 in the world in October 2011. At junior level, she reached a combined career-high ranking of world No. 3. Morita is known for strong and consistent two-handed grounds ...
. Japan went on to defeat Slovenia 5-0. At the
Open GDF Suez Open GDF Suez, formerly Open Gaz de France, was a Premier level tennis tournament on the WTA Tour held in Paris, France. Held from 1993 till 2014, the tournament was played indoors, originally on carpet until 2000, then on hardcourts. The 2014 O ...
, Hercog lost in the first round to Chanelle Scheepers in straight sets. She suffered another first-round loss at the Qatar Open to Tsvetana Pironkova. Seeded second for qualifying at the Dubai Championships, she lost in the final round of qualifying to Aleksandra Wozniak. Entering the main draw as a lucky loser, Hercog lost in the first round to world No. 21,
Daniela Hantuchová Daniela Hantuchová (; born 23 April 1983) is a Slovak tennis commentator and retired player. She turned professional in 1999 and had her breakthrough year in 2002, when she won her first WTA Tour title at the Indian Wells Masters, defeating M ...
. Ranked 38 at the
Indian Wells Open The Indian Wells Masters, also known as the Indian Wells Open and BNP Paribas Open is an annual tennis tournament usually held in early- and mid-March at the Indian Wells Tennis Garden in Indian Wells, California, United States. The owner is La ...
, she lost in the first round to wildcard Jamie Hampton, 0–6, 1–6. At the Sony Ericsson Open, Hercog got revenge on qualifier Jamie Hampton defeating her in the first round 6–1, 6–3. In the second, she lost to seventh seed Marion Bartoli. Hercog began her clay-court season at Charleston. Seeded 14th, she beat Kimiko Date-Krumm in the first round and American
Varvara Lepchenko Varvara (Cyrillic: Варвара; el, Βαρβάρα, ''Varvára''), a variant of " Barbara", may refer to: Places *Varvara, Azerbaijan * Varvara, Prozor, on the Rama river, Bosnia and Herzegovina * Varvara, Burgas Province, Bulgaria * Varvara ...
in the second. In the third round, Hercog upset third seed Marion Bartoli. and in the quarterfinals, 13th seed Nadia Petrova, 6–1, 6–2 to reach the semifinals where she was crushed by ninth seed Lucie Šafářová, 6–0, 6–0. Seeded eighth at the
Barcelona Ladies Open The Barcelona Ladies Open was a tennis tournament for women held in Barcelona in Catalonia (Spain) and was played on outdoor clay courts. It was an International-level tournament on the WTA Tour with total prize money of $220,000. The tourna ...
, Hercog retired in her first round match against Sorana Cîrstea after losing the first set 4–6 due to dizziness. Seeded ninth at the Estoril Open, she defeated Tamira Paszek in the first round 6–0, 6–3. In the second round, Hercog retired trailing 6–4, 3-0 to Carla Suárez Navarro due to a right foot injury. Ranked 37 at the Madrid Open, Hercog lost in the first round to Shahar Pe'er 3–6, 5–7. At the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
, she was defeated in the first round by
Ayumi Morita is a Japanese tennis player. She reached her career-high ranking of number 40 in the world in October 2011. At junior level, she reached a combined career-high ranking of world No. 3. Morita is known for strong and consistent two-handed grounds ...
. At Wimbledon, Hercog lost in the first round to qualifier
Kristýna Plíšková Kristýna Plíšková (; born 21 March 1992) is an inactive Czech professional tennis player. Plíšková has won one singles and four doubles titles on the WTA Tour, as well as nine singles and eight doubles titles on the ITF Circuit. On 31 Ju ...
. After that, she competed at
Palermo Palermo ( , ; scn, Palermu , locally also or ) is a city in southern Italy, the capital of both the autonomous region of Sicily and the Metropolitan City of Palermo, the city's surrounding metropolitan province. The city is noted for its ...
where she was upset in the first round by
Irina-Camelia Begu Irina-Camelia Begu (born 26 August 1990) is a Romanian professional tennis player. She reached a career-high singles ranking of No. 22 in the world, in August 2016. Two years later, she reached her highest WTA doubles ranking, also No. 22. Begu ...
. Hercog then played at the Swedish Open as the defending champion and prevailed again, defeating Mathilde Johansson in the final. Representing
Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...
at the London Olympics, Hercog was defeated in the first round by María José Martínez Sánchez. She played one warm-up tournament before the US Open. At the
Texas Open The Texas Open, known as the Valero Texas Open for sponsorship reasons, is a professional golf tournament on the PGA Tour, played near San Antonio, Texas. It dates back years to 1922, when it was first called the Texas Open; San Antonio-based Val ...
. She faced
Kiki Bertens Kiki Bertens (; born 10 December 1991) is a Dutch former professional tennis player. Her career-high WTA singles ranking was world No. 4, which she reached on 13 May 2019, becoming the highest ranked Dutch female player ever. Her career-high do ...
in the first round, and won the first set 6–4 when Bertens retired due to a right abdominal injury. In the second round, she lost to third seed and eventual champion Roberta Vinci. At the US Open, Hercog was defeated in the first round by fifth seed Petra Kvitová. At the Korea Open, she lost in the first round to eighth seed Ekaterina Makarova. Seeded 11th for qualifying at the Pan Pacific Open, Hercog lost in the first round of qualifying to wildcard
Kurumi Nara is a Japanese former professional tennis player. She has won one singles title on the WTA Tour, as well as six singles and three doubles titles on the ITF Women's Circuit. On 18 August 2014, she reached a career-high singles ranking of worl ...
. She qualified for the China Open beating 17th seed Mathilde Johansson and
Gréta Arn Gréta Arn (born 13 April 1979) is a Hungarian retired tennis player of Danube Swabian German descent. She has won two titles on the WTA Tour, the 2007 Estoril Open in Portugal, and the 2011 ASB Classic in Auckland, New Zealand, as well as fo ...
. In round one, Hercog led 5–7, 6–4, 3-0 before Anastasia Pavlyuchenkova retired due to a gastrointestinal illness. In the second round, she defeated Ekaterina Makarova in a very close match. In the third round, Hercog lost to second seed and eventual finalist Maria Sharapova. Her final tournament of the year was at the
HP Open The Japan Women's Open Tennis is a professional women's tennis tournament played on outdoor hard courts. The event is affiliated with the Women's Tennis Association (WTA), and is an International-level tournament on the WTA Tour. As successor to ...
. She lost in the first round to eventual champion
Heather Watson Heather Miriam Watson (born 19 May 1992) is a British professional tennis player. A former British No. 1, Watson has won nine titles over her career, including the mixed-doubles title at the 2016 Wimbledon Championships partnering Henri ...
. Hercog ended the year ranked No. 80.


2013

At the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
, she was defeated in the first round by 21st seed
Varvara Lepchenko Varvara (Cyrillic: Варвара; el, Βαρβάρα, ''Varvára''), a variant of " Barbara", may refer to: Places *Varvara, Azerbaijan * Varvara, Prozor, on the Rama river, Bosnia and Herzegovina * Varvara, Burgas Province, Bulgaria * Varvara ...
. Seeded 17th for qualifying at the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
, she beat
Ajla Tomljanović Ajla Tomljanović ( ; ; born 7 May 1993) is an Australian professional tennis player. She has won four singles and three doubles titles on the ITF Circuit. On 31 October 2022, she reached a career-high singles ranking of world No. 33. On 5 Janu ...
in the first round of qualifying, but in the second round she lost to Grace Min. After the French Open, Hercog played the 25k-tournament in
Maribor Maribor ( , , , ; also known by other historical names) is the second-largest city in Slovenia and the largest city of the traditional region of Lower Styria. It is also the seat of the City Municipality of Maribor, the seat of the Drava sta ...
, Slovenia. As the top seed, she won the tournament defeating
Ana Konjuh Ana Konjuh (; born 27 December 1997) is a Croatian tennis player. A successful junior player, Konjuh won both the singles and doubles junior events at the Australian Open in January 2013 and, as a result, moved up to No. 1 in the ITF Junior ...
in the final. At the 100k-tournament in Marseille, she was defeated in the semifinals by top seed
Anabel Medina Garrigues Ana Isabel Medina Garrigues (, ; born 31 July 1982) is a Spanish tennis coach and former professional player. As a player she reached a career-high ranking of world No. 16 in 2020, and won 11 singles and 28 doubles titles, including the 2008 ...
. Competing at the first edition of the Nürnberger Versicherungscup, Hercog upset second seed Klára Zakopalová in the first round. In the second round, she beat Julia Cohen in two sets. In the quarterfinals, Hercog was defeated by fifth seed Lucie Šafářová. Seeded fourth for qualifying at Wimbledon, Hercog lost in the second round of qualifying to
Petra Cetkovská Petra Cetkovská (; born 8 February 1985) is a retired Czech tennis player. Having turned professional in 2000, she reached a career-high singles ranking of world No. 25, on 18 June 2012. Over her career, Cetkovská defeated top-ten players Mar ...
. At
Palermo Palermo ( , ; scn, Palermu , locally also or ) is a city in southern Italy, the capital of both the autonomous region of Sicily and the Metropolitan City of Palermo, the city's surrounding metropolitan province. The city is noted for its ...
, she was defeated in the second round by second seed Roberta Vinci. Hercog won the
ITS Cup The ITS Cup is a tournament for professional female tennis players played on outdoor clay courts. The event is classified as a $60,000 ITF Women's Circuit tournament and has been held in Olomouc, Czech Republic, since 2009. The event had previousl ...
as the top seed beating Katarzyna Piter in the final. Seeded sixth at the
Baku Cup The Baku Cup was a professional women's tennis tournament held in Baku, Azerbaijan. It made its debut on the 2011 WTA Tour and as one of the international tier of events. This WTA Tour event is an international tournament and was played at the B ...
, Hercog lost in the first round to
Galina Voskoboeva Galina Olegovna Voskoboeva (russian: Галина Олеговна Воскобоева; born 18 December 1984) is a professional Russian-born Kazakhstani tennis player. She reached a career-high singles ranking of world No. 42 on 7 May 2012. He ...
. Hercog qualified for the
Cincinnati Open The Cincinnati Masters or Cincinnati Open (branded as the Western & Southern Open for sponsorship reasons) is an annual outdoor hardcourt tennis event held in Mason, Ohio near Cincinnati. The event started on September 18, 1899, and is the o ...
defeating ninth seed Lourdes Domínguez Lino in the final round of qualifying. In the first round, she beat world No. 19, Dominika Cibulková, 6–2, 6–4. In the second round, Hercog lost to sixth seed Sara Errani. At the US Open, Hercog was defeated in the first round by 24th seed Ekaterina Makarova. At the Challenge Bell, she stunned top seed and defending champion Kirsten Flipkens in the first round 6–3, 6–1. In the second round, she beat qualifier Julie Coin 6–0, 6–2. In the quarterfinals, Hercog lost to
Christina McHale Christina Marietta McHale (born May 11, 1992) is an American former professional tennis player. Her highest-ever WTA rankings were No. 24 in singles and No. 35 in doubles. Known for an aggressive baseline game, McHale was recognized by ''The New ...
. Hercog qualified for the Pan Pacific Open beating ninth seed Tsvetana Pironkova in the final round of qualifying. In the first round, she was defeated in a close match by world No. 35, Lucie Šafářová. Qualifying for the China Open, Hercog beat Monica Puig in the first round 6–1, 6–4. In the second round, Hercog upset 14th seed and former world No. 1,
Ana Ivanovic Ana Schweinsteiger ( sr, Ана Швајнштајгер / ''Ana Švajnštajger''; born 6 November 1987), professionally known by her birth name Ana Ivanovic (Ана Ивановић / ''Ana Ivanović'', ), is a Serbian former world No. 1 tenn ...
. In the third round, she lost to third seed Agnieszka Radwańska. Her final tournament of the year was the Japan Open. In the first round, she beat Petra Cetkovská, and received a walkover in the second round since her opponent, second seed Sabine Lisicki, withdrew due to a hip injury. In the quarterfinals, Hercog was defeated by Kurumi Nara. She ended the year ranked No. 66.


2014

Hercog began her season at the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
. In the first round, she was up against 25th seed Alizé Cornet. Hercog retired trailing 1-0 due to a shoulder injury. Hercog made her comeback during the clay-court season at the Morocco Open. In the first round, she upset Zhang Shuai 6–2, 6–2. In the second round, she defeated
Alison Van Uytvanck Alison Van Uytvanck (; born 26 March 1994) is a Belgian professional tennis player. Van Uytvanck has won five singles and two doubles WTA Tour titles and three Challenger Tour singles titles, as well as 12 singles and two doubles titles on th ...
6–1, 6–4. Hercog was then stopped in the quarterfinals by eventual champion
María Teresa Torró Flor María Teresa Torró Flor (; born 2 May 1992) is a Spanish former professional tennis player. In her career, Torró Flor won one singles title and three doubles titles on the WTA Tour, as well as 18 singles and five doubles titles on the ITF W ...
in two tie-breakers. At the
Portugal Open The Portugal Open (formerly named Estoril Open) was an ATP and WTA clay court tennis tournament in Portugal. The event took place at the sports complex of Jamor in Oeiras, of which Estoril Court Central is the most prominent show court. In 20 ...
, she beat Stefanie Vögele in the first round. In the second round, she upset sixth seed Lucie Šafářová. Hercog lost in the quarterfinals to top seed and eventual champion, Carla Suárez Navarro. Seeded sixth for qualifying at the
Italian Open Italian Open may refer to: *Italian Open (tennis), a Masters 1000 level tennis tournament played in Rome each year. *Italian Open (golf) The DS Automobiles Italian Open ( it, Open d'Italia) is the men's national open golf championship of Italy. I ...
, Hercog lost in the first round of qualifying to Belinda Bencic. Her final tournament before the French Open was the Nürnberger Versicherungscup. In the first round, she upset third seed Klára Koukalová in three sets. In the second round, Hercog lost to Karin Knapp. At the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
, she defeated Jana Čepelová in the first round In the second round, Hercog was defeated by 15th seed
Sloane Stephens Sloane Stephens (born March 20, 1993) is an American professional tennis player. She achieved a career-best ranking of world No. 3 after Wimbledon in 2018. Stephens was the 2017 US Open champion, and has won seven WTA Tour singles titles in to ...
6–1, 6–3. Hercog played only one grass-court tournament before Wimbledon. She lost in the first round at Rosmalen to sixth seed Kirsten Flipkens. At Wimbledon, she won her first round match over Paula Ormaechea. In the second round, she was defeated by 23rd seed Lucie Šafářová. After Wimbledon, Hercog competed at the first edition of the
Bucharest Open The Bucharest Open established in 2014 was a professional tennis tournament played on outdoor clay courts in Bucharest, Romania. It was part of the Women's Tennis Association (WTA) Tour. It was held annually in July at the Arenele BNR The ...
. Seeded eighth in the draw, she defeated
Anna Tatishvili Anna Tatishvili ( ka, ანა ტატიშვილი, tr, ; born February 3, 1990) is a Georgian-American former professional tennis player. In her career, Tatishvili won eleven singles and eight doubles titles on the ITF Women's Circu ...
in the first round. In the second round, she beat Katarzyna Piter. In the quarterfinals, Hercog lost to
Monica Niculescu Monica Niculescu (born 25 September 1987) is a Romanian professional tennis player. She has been ranked by the Women's Tennis Association as high as 28 in singles and 11 in doubles. Niculescu has won several titles: three singles and ten doubl ...
. Seeded eighth at the Swedish Open, she lost in the first round to Dinah Pfizenmaier. Hercog began the US Open Series at the Washington Open. She lost in the first round to sixth seed and eventual champion Svetlana Kuznetsova. Seeded 20th for qualifying at the
Cincinnati Open The Cincinnati Masters or Cincinnati Open (branded as the Western & Southern Open for sponsorship reasons) is an annual outdoor hardcourt tennis event held in Mason, Ohio near Cincinnati. The event started on September 18, 1899, and is the o ...
, Hercog reached the main draw beating Paula Ormaechea and
Julia Glushko Julia Glushko (or Yulia, he, יוליה גלושקו; born 1 January 1990) is an Israeli retired tennis player. She won 11 singles and 14 doubles titles on the ITF Circuit. Her best results at a Grand Slam tournament were reaching the third ...
. In the first round, she was defeated by Kirsten Flipkens, 6–3, 6–2. At the Connecticut Open, her final tournament before the US Open, Hercog lost in the second round of qualifying to Karin Knapp, 2–6, 1–6. Ranked 76 at the US Open, she defeated world No. 35, Elina Svitolina, in the first round in two sets. In the second round, she lost to 17th seed Ekaterina Makarova. After the US Open, Hercog played at the first edition of the Hong Kong Open. She lost in the first round to third seed and eventual finalist, Karolína Plíšková. At the Korea Open, Hercog was defeated in the first round by top seed and defending champion Agnieszka Radwańska. Seeded 18th for qualifying at the first edition of the Wuhan Open, she lost in the first round of qualifying to Nicole Gibbs. Seeded 11th for qualifying at the China Open, Hercog qualified by defeating Yulia Putintseva and seventh seed Monica Puig. In the first round, she beat world No. 29, Karolína Plíšková. In the second round, Hercog lost to 12th seed Ekaterina Makarova. Seeded second for qualifying at the
Generali Ladies Linz The Linz Open, currently sponsored by Generali Gruppe, is a women's tennis tournament held in Linz, Austria. It is played on indoor hardcourts. The inaugural event took place in 1987 in Wels, Austria and was organized by the ITF as a $10,000 tou ...
, she lost in the first round of qualifying to
Lucie Hradecká Lucie Hradecká (; born 21 May 1985) is a Czech former professional tennis player. A three-time Grand Slam doubles champion and 26-time WTA Tour doubles titlist, she reached her career-high doubles ranking of world No. 4 in October 2012. She ...
. Her final tournament of the year was at the Luxembourg Open. She won her first-round match over Marina Erakovic 6–3, 6–4. Then Hercog was defeated by qualifier Johanna Larsson. She ended the year ranked No. 95.


2015

Hercog started the year at the Shenzhen Open where she lost to
Zheng Saisai Zheng Saisai or Zheng Sai-Sai (; born February 5, 1994) is a Chinese tennis player. She won one WTA singles title (at the Premier level 2019 Silicon Valley Classic), five WTA doubles titles, and reached the final of the 2019 French Open in dou ...
in the second round. Coming through qualifying at the Sydney International, Hercog was defeated in the first round by Karolína Plíšková. At the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
, she lost in the second round to qualifier Lucie Hradecká. Seeded seventh at the Rio Open, Hercog was defeated in the second round by Brazilian wildcard Beatriz Haddad Maia. Playing in Acapulco at the Mexican Open, she lost in the first round to third seed and eventual finalist Caroline Garcia. Hercog stayed in Mexico to compete at the Monterrey Open. She was defeated in the second round by eighth seed Magdaléna Rybáriková. Hercog had multiple match points in the third set but failed to convert. Getting past qualifying at the
Indian Wells Open The Indian Wells Masters, also known as the Indian Wells Open and BNP Paribas Open is an annual tennis tournament usually held in early- and mid-March at the Indian Wells Tennis Garden in Indian Wells, California, United States. The owner is La ...
, Hercog beat 2009 champion Vera Zvonareva in the first round. She lost in the second round to 25th seed Caroline Garcia. At the Miami Open, Hercog was defeated in the first round by
Anna Karolína Schmiedlová Anna Karolína Schmiedlová (; born 13 September 1994) is a Slovak tennis player. She has won three singles titles on the WTA Tour, one singles title on the WTA Challenger Tour as well as 12 singles titles on the ITF Circuit. On 12 October 2 ...
. In Poland at the Katowice Open, Hercog lost in the second round to second seed and defending champion Alizé Cornet.


2016

Hercog began the year at
Auckland Auckland (pronounced ) ( mi, Tāmaki Makaurau) is a large metropolitan city in the North Island of New Zealand. The most populous urban area in the country and the fifth largest city in Oceania, Auckland has an urban population of about I ...
where she lost in the first round to fifth seed and eventual champion, Sloane Stephens. In
Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mounta ...
, she was defeated in the final round of qualifying by Monica Puig. However, she was awarded a lucky loser spot into the main draw. She lost in the first round to Sabine Lisicki. At the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
, she was defeated in the first round by 19th seed Jelena Janković. Seeded fifth at the Rio Open, Hercog lost in the second round to Sorana Cîrstea. Playing at the Mexican Open, she was defeated in the first round by top seed Victoria Azarenka. At the Monterrey Open, she lost in the second round to eventual champion Heather Watson. Competing in Indian Wells, she was defeated in the first round by
Yanina Wickmayer Yanina Wickmayer (born 20 October 1989) is a Belgian professional tennis player. She reached the semifinals at the 2009 US Open, and a career-high WTA ranking of world No. 12, on 19 April 2010. In doubles, she achieved a career-high of world No. ...
. At the Miami Open, she retired during her first round of qualifying match against Fanny Stollár. Hercog began her clay-court season at the Porsche Grand Prix. She lost in the final round of qualifying to German Laura Siegemund. At the Morocco Open, she was defeated in the first round by fifth seed and last year finalist Tímea Babos. In
Madrid Madrid ( , ) is the capital and most populous city of Spain. The city has almost 3.4 million inhabitants and a metropolitan area population of approximately 6.7 million. It is the second-largest city in the European Union (EU), and ...
, she lost in the first round of qualifying to Madison Brengle. At the
Italian Open Italian Open may refer to: *Italian Open (tennis), a Masters 1000 level tennis tournament played in Rome each year. *Italian Open (golf) The DS Automobiles Italian Open ( it, Open d'Italia) is the men's national open golf championship of Italy. I ...
, she was defeated in the first round of qualifying by Julia Görges. Her final tournament before the French Open was at
Nürnberg Nuremberg ( ; german: link=no, Nürnberg ; in the local East Franconian dialect: ''Nämberch'' ) is the second-largest city of the German state of Bavaria after its capital Munich, and its 518,370 (2019) inhabitants make it the 14th-largest ...
where she lost in the second round to fourth seed Lesia Tsurenko. At the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
, she was defeated in the second round by 30th seed Barbora Strýcová. Seeded seventh at the
Bol Open Croatian Bol Ladies Open was an annual women's tennis tournament on the Women's Tennis Association, WTA Challenger Tour, played in the town of Bol, Croatia, Bol on the Croatian Adriatic island of Brač. The tournament's first edition was held in la ...
, Hercog reached the final which she lost to Mandy Minella. Beginning her grass-court season at the Rosmalen Open, Hercog retired during her first-round match against Varvara Lepchenko. Coming through qualifying at the Eastbourne International, she was defeated in the first round by Misaki Doi. At the
Wimbledon Championships The Wimbledon Championships, commonly known simply as Wimbledon, is the oldest tennis tournament in the world and is widely regarded as the most prestigious. It has been held at the All England Club in Wimbledon, London, since 1877 and is pla ...
, she lost in the first round to Alizé Cornet. Competing at the
Bucharest Open The Bucharest Open established in 2014 was a professional tennis tournament played on outdoor clay courts in Bucharest, Romania. It was part of the Women's Tennis Association (WTA) Tour. It was held annually in July at the Arenele BNR The ...
, Hercog made it to the quarterfinals where she was defeated by fourth seed Laura Siegemund. At the Swedish Open, she fell in the first round to Julia Görges. Representing
Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...
at the Rio Olympics, she lost in the first round to eventual gold medalist Monica Puig. At the US Open, Hercog faced second seed Angelique Kerber in the first round. She retired from the match due to illness. Due to not playing for the rest of the year, Hercog ended the year ranked 139.


2017

She returned to the tour for her first tournament since the 2016 US Open at the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
. where she beat French wildcard
Harmony Tan Harmony Tan (born 11 September 1997) is a French professional tennis player. Tan has career-high WTA rankings of world No. 90 in singles and 302 in doubles. She has won eight singles titles and one doubles title on tournaments of the ITF Women' ...
in the first round of qualifying. However, in the second round, Hercog lost to Zarina Diyas. At a 25k tournament in
Grado Grado may refer to: People * Cristina Grado (1939–2016), Italian film actress * Jonathan Grado (born 1991), American entrepreneur and photographer * Francesco De Grado ( fl. 1694–1730), Italian engraver * Gaetano Grado, Italian mafioso * ...
, she lost in the first round to Diāna Marcinkēviča. Seeded seventh at the Internazionali di Brescia, she won the title, defeating Ganna Poznikhirenko in the final in two sets.


2019

Hercog began the year at the Auckland Open. She lost in the first round to third seed Hsieh Su-wei. In
Hobart Hobart ( ; Nuennonne/ Palawa kani: ''nipaluna'') is the capital and most populous city of the Australian island state of Tasmania. Home to almost half of all Tasmanians, it is the least-populated Australian state capital city, and second-small ...
, she was defeated in the first round of qualifying by Olivia Rogowska. At the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
, she lost in the first round to second seed and 2016 champion, Angelique Kerber. As the top seed at the Andrézieux-Bouthéon Open, Hercog reached the semifinals where she retired after losing the first set against
Rebecca Šramková Rebecca Šramková (; born 19 October 1996) is a Slovak tennis player. She has career-high WTA rankings of 111 in singles, achieved on 8 May 2017, and 364 in doubles, reached on 24 May 2021. On the ITF Women's Circuit, she has won ten singles tit ...
. In
Doha Doha ( ar, الدوحة, ad-Dawḥa or ''ad-Dōḥa'') is the capital city and main financial hub of Qatar. Located on the Persian Gulf coast in the east of the country, north of Al Wakrah and south of Al Khor (city), Al Khor, it is home to m ...
, she was defeated in the final round of qualifying by
Ajla Tomljanović Ajla Tomljanović ( ; ; born 7 May 1993) is an Australian professional tennis player. She has won four singles and three doubles titles on the ITF Circuit. On 31 October 2022, she reached a career-high singles ranking of world No. 33. On 5 Janu ...
. However, due to the withdrawal of
Ashleigh Barty Ashleigh is the feminine form of the Old English name Ashley, which means "dweller near the ash tree forest". It is most common in the United States and United Kingdom. Notable people B *Ashleigh Ball (born 1983), Canadian voice actress * Ashle ...
, she entered the main draw as a lucky loser. In the first round, she lost to fellow lucky loser Alison Riske. At the Dubai Championships, she fell in the final round of qualifying to Lucie Hradecká. Since Caroline Wozniacki withdrew from the tournament due to a viral illness, she got a lucky loser spot in the main draw. She was defeated in the first round by lucky loser Stefanie Vögele. In March, she played at the Miami Open. Even though she lost in the final round of qualifying to Laura Siegemund, she still entered the main draw as a lucky loser. She reached the third round where she was eliminated by second seed Simona Halep. Hercog won her third WTA singles title at the Lugano Open beating
Iga Świątek Iga Natalia Świątek (; born 31 May 2001) is a Polish professional tennis player. She is currently ranked world No. 1 by the Women's Tennis Association (WTA). Świątek is a three-time major singles champion, having won the French Open in 20 ...
in the final.


2020

Hercog kicked off new season at the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
where she lost in the second round to top seed
Ashleigh Barty Ashleigh is the feminine form of the Old English name Ashley, which means "dweller near the ash tree forest". It is most common in the United States and United Kingdom. Notable people B *Ashleigh Ball (born 1983), Canadian voice actress * Ashle ...
. Playing at the Dubai Championships, she was defeated in the final round of qualifying by Kristina Mladenovic. In
Doha Doha ( ar, الدوحة, ad-Dawḥa or ''ad-Dōḥa'') is the capital city and main financial hub of Qatar. Located on the Persian Gulf coast in the east of the country, north of Al Wakrah and south of Al Khor (city), Al Khor, it is home to m ...
, she lost in the first round to Alison Van Uytvanck. The WTA suspended tournaments from March through July due to the
COVID-19 pandemic The COVID-19 pandemic, also known as the coronavirus pandemic, is an ongoing global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identi ...
. When the WTA resumed tournaments in August, Hercog competed at the Palermo Open. She was defeated in the first round by Italian wildcard Elisabetta Cocciaretto. At the
Prague Open In tennis, Prague Open may refer to: * Prague Open (1987–1999) * ATP Prague Open * WTA Prague Open The Prague Open (currently branded as the Livesport Prague Open for sponsorship reasons) is a professional women's tennis tournament held in Pr ...
, she lost in a tight three-set first-round match to top seed and eventual champion, Simona Halep. She skipped both the
Cincinnati Open The Cincinnati Masters or Cincinnati Open (branded as the Western & Southern Open for sponsorship reasons) is an annual outdoor hardcourt tennis event held in Mason, Ohio near Cincinnati. The event started on September 18, 1899, and is the o ...
and the US Open. Seeded third at the İstanbul Cup, Hercog reached the quarterfinals where she was defeated by Paula Badosa. In
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
, she upset fifth seed Kiki Bertens in the second round. She fell in the third round to 12th seed Markéta Vondroušová. At the Internationaux de Strasbourg, she lost in the first round to 2013 champion Alizé Cornet. At the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
, she was defeated in the second round by
Leylah Fernandez Leylah Annie Fernandez (born 6 September 2002) is a Canadian professional tennis player. She has a career-high ranking of No. 13 by the Women's Tennis Association (WTA), achieved on 8 August 2022. Fernandez won her first WTA Tour title at the 20 ...
. Hercog played her final tournament of the season at the Al Habtoor Challenge in Dubai. Seeded second, she made it to the semifinal where she lost to Sorana Cîrstea. Hercog ended the year ranked 52.


2021

Hercog started her season at the first edition of the Abu Dhabi Open. She lost in the first round to fourth seed and eventual champion, Aryna Sabalenka. Seeded 15th at the first edition of the Gippsland Trophy, she was defeated in the second round by Daria Kasatkina. At the
Australian Open The Australian Open is a tennis tournament held annually at Melbourne Park in Melbourne, Australia. The tournament is the first of the four Grand Slam tennis events held each year, preceding the French Open, Wimbledon, and the US Ope ...
, she lost in the first round to Caroline Garcia. Competing in
Dubai Dubai (, ; ar, wikt:دبي, دبي, translit=Dubayy, , ) is the List of cities in the United Arab Emirates#Major cities, most populous city in the United Arab Emirates (UAE) and the capital of the Emirate of Dubai, the most populated of the 7 ...
, Hercog was defeated in the first round by lucky loser Misaki Doi. As the top seed at the Oeiras Ladies Open, Hercog won the title when her opponent, fifth seed
Clara Burel Clara Burel (; born 24 March 2001) is a French tennis player. On 21 February 2022, she peaked at No. 74 in the WTA singles rankings. In singles, she reached two Grand Slam junior finals and won two silver medals at the Youth Summer Olympics. ...
, withdrew from the match due to a left ankle injury. At the İstanbul Cup, she lost in the first round to Vera Zvonareva. Despite losing in the final round of qualifying at the Madrid Open to Bernarda Pera, she still received a lucky loser spot into the main draw due to the withdrawal of Svetlana Kuznetsova. She was defeated in the first round by Jeļena Ostapenko. Getting past qualifying in
Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...
, she lost in the first round to 17th seed
Maria Sakkari Maria Sakkari ( gr, Μαρία Σάκκαρη, ; born 25 July 1995) is a Greek professional tennis player. She has been ranked as high as world No. 3 by the Women's Tennis Association (WTA), which she first achieved on 21 March 2022, making her ...
. At the first edition of the Serbia Open, she was defeated in the first round by Leylah Fernandez. At the
French Open The French Open (french: Internationaux de France de tennis), also known as Roland-Garros (), is a major tennis tournament held over two weeks at the Stade Roland Garros in Paris, France, beginning in late May each year. The tournament and ve ...
, she beat 16th seed and 2016 semifinalist, Kiki Bertens, in the first round. She ended up losing in the third round to 20th seed and 2019 finalist, Markéta Vondroušová. At the Birmingham Classic, Hercog was defeated in the first round by fourth seed and eventual finalist, Daria Kasatkina. In
Eastbourne Eastbourne () is a town and seaside resort in East Sussex, on the south coast of England, east of Brighton and south of London. Eastbourne is immediately east of Beachy Head, the highest chalk sea cliff in Great Britain and part of the l ...
, she fell in the first round of qualifying to Zhang Shuai. At Wimbledon, she lost in the first round to Danielle Collins. At the US Open, she lost in the first round to 10th seed Petra Kvitová. At the
Indian Wells Open The Indian Wells Masters, also known as the Indian Wells Open and BNP Paribas Open is an annual tennis tournament usually held in early- and mid-March at the Indian Wells Tennis Garden in Indian Wells, California, United States. The owner is La ...
, she lost in the first round to Anastasija Sevastova making her win–loss record 4-14 for the season, the worst in her 15 year professional career. Hercog ended the year ranked 135.


Performance timelines

''Only main-draw results in WTA Tour, Grand Slam tournaments, Billie Jean King Cup /Fed Cup and Olympic Games are included in win–loss records.''


Singles

''Current through the 2021 Transylvania Open.''


Doubles


WTA career finals


Singles: 6 (3 titles, 3 runner-ups)


Doubles: 3 (2 titles, 1 runner-up)


WTA Challenger finals


Singles: 1 (1 runner–up)


ITF Circuit finals


Singles: 19 (18 titles, 1 runner–up)


Doubles: 7 (5 titles, 2 runner–ups)


Grand Slam junior finals


Doubles: 2 (2 titles)


Top 10 wins


Notes


References


External links

* * * * * * {{DEFAULTSORT:Hercog, Polona 1991 births Living people Sportspeople from Maribor People from Monte Carlo Slovenian people of German descent Slovenian expatriates in Monaco Slovenian female tennis players Wimbledon junior champions Tennis players at the 2012 Summer Olympics Tennis players at the 2016 Summer Olympics Olympic tennis players of Slovenia Grand Slam (tennis) champions in girls' doubles