Mei Yamaguchi (tennis)
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, formerly known by her
ring name A ring name is a type of stage name used by an athlete such as a professional wrestler, mixed martial artist, or boxer whose real name is considered unattractive, dull, difficult to pronounce or spell, amusing for the wrong reasons, or projecting ...
, is a Japanese female mixed martial artist and
kickboxer Kickboxing is a combat sport focused on kicking and punching. The combat takes place in a boxing ring, normally with boxing gloves, mouthguards, shorts, and bare feet to favour the use of kicks. Kickboxing is practiced for self-defense, general ...
. Her former nickname comes from the V1 armlock wrestling move. Yamaguchi currently fights as a Super Atomweight in the
Rizin Fighting Federation Rizin Fighting Federation (Rizin FF or Rizin) is a Japanese mixed martial arts organization created in 2015 by the former Pride Fighting Championships and Dream Stage Entertainment president Nobuyuki Sakakibara. Rizin was founded to be the spir ...
promotion. She has a notable victory over Yuka Tsuji and was the final Valkyrie Featherweight Champion. She has also competed in Deep Jewels and ONE Championship. She is currently ranked #5 in the ONE Championship Women's Atomweight rankings. On , Yamaguchi announced that she would begin competing as a freelance fighter and changed her ring name to V.V.


Early life

Yamaguchi was born in Tokyo,
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 north ...
on , and grew up with a sister and a little brother. While living in Los Angeles, California, she studied some of her
elementary school A primary school (in Ireland, the United Kingdom, Australia, Trinidad and Tobago, Jamaica, and South Africa), junior school (in Australia), elementary school or grade school (in North America and the Philippines) is a school for primary ed ...
years before returning to Japan following her mother's unexpected death. Yamaguchi began to learn
karate (; ; Okinawan language, Okinawan pronunciation: ) is a martial arts, martial art developed in the Ryukyu Kingdom. It developed from the Okinawan martial arts, indigenous Ryukyuan martial arts (called , "hand"; ''tii'' in Okinawan) under the ...
during her residence in the United States around the age of 7, yearning to be like Jackie Chan. In junior high she played softball, and during college she started training in
Brazilian Jiu-Jitsu Brazilian jiu-jitsu (BJJ; pt, jiu-jitsu brasileiro ) is a self-defence martial art and combat sport based on grappling, ground fighting (ne-waza) and submission holds. BJJ focuses on the skill of taking an opponent to the ground, control ...
. She also studied abroad in the United States during her university years: she first attended Japan Campus of Temple University before transferring to
El Camino College El Camino College (Elco or ECC) is a two-year public community college located in the unincorporated area of Los Angeles County known as Alondra Park.


Mixed martial arts career


Early career

Yamaguchi started her professional career in MMA in the lightweight tournament of ''
Smackgirl-F 2007: The Next Cinderella Tournament 2007 First Stage'' on , where she defeated Anna Saito by submission due to a rear naked choke. Yamguchi won her next fight in Smackgirl, defeating Saori Ishioka with a kneebar, forcing Ishioka to tap in the second round in the semi-finals at ''Smackgirl-F 2007: The Next Cinderella Tournament 2007 2nd Stage'' on . On at ''Smackgirl 2007: Queens' Hottest Summer'', Yamaguchi defeated Emi Tomimatsu by
split decision A split decision (SD) is a winning criterion in boxing, most commonly in full-contact combat sports, in which two of the three judges score one particular competitor as the winner, while the third judge scores for the other competitor. A split dec ...
, winning the final of the Next Cinderella Tournament 2007 in the lightweight division. In her last fight with the promotion Smackgirl and her fourth professional match, Yamaguchi was defeated via split decision by Emi Fujino on at ''Smackgirl 7th Anniversary: Starting Over''. Her next bout would be at the first event for the promotion Valkyrie, ''Valkyrie 01'', where she lost by unanimous decision against women's MMA legend Yuka Tsuji on . It was just the fourth time that Tsuji had been taken to a decision. Yamaguchi rebounded by winning her next two bouts in the inaugural Valkyrie women's featherweight tournament. The first was a unanimous decision win over Emi Fujino on at ''Valkyrie 02'' in a rematch of their 2007 bout. The second tournament bout was against Kyoko Takabayashi, whom Yamaguchi was able to defeat with a close split decision at ''Cage Force & Valkyrie'' on , winning the tournament in the process and earning the right to face Yuka Tsuji for Valkyrie's Featherweight championship. At ''Valkyrie 04'', in her second match against Tsuji, Yamaguchi was once again the underdog, but she managed to defeat Tsuji with a rear naked choke in only 76 seconds. This was the first time that Tsuji was defeated by a fellow Japanese fighter and only the second time that she had been defeated in her MMA career. Yamaguchi became Valkyrie's Featherweight Champion in what is considered one of the biggest upsets in the history of women's mixed martial arts. On , Yamaguchi faced Kyoko Takabayashi in a rematch of the 2009 featherweight tournament final and Yamaguchi's first defense of Valkyrie's featherweight title. Yamaguchi barely retained with a contentious majority draw in which the dissenting judge scored the fight in favor of Takabayashi at ''Valkyrie 08''. Yamaguchi faced "Windy" Tomomi Sunaba at '' Pancrase Impressive Tour 3'' on . She defeated Sunaba by majority decision. Yamaguchi next faced Akiko Naito at ''Pancrase Impressive Tour 4'' on . She defeated Naito by armbar submission in the first round.


Jewels

Yamaguchi faced Seo Hee Ham in a ''Jewels vs. Valkyrie'' match at ''
Jewels 15th Ring ''Jewels 15th Ring'' was a mixed martial arts (MMA) event held by promotion Jewels on at Shinjuku Face in Kabukicho, Tokyo, Japan. As in the previous Jewels event, ''15th Ring'' featured a Jewels vs. Valkyrie theme, pitting fighters from both p ...
'' on . She was defeated by unanimous decision. Yamaguchi faced Mika Nagano at ''
Jewels 17th Ring ''Jewels 17th Ring'' was a mixed martial arts (MMA) event held by promotion Jewels on at Shinjuku Face in Kabukicho, Tokyo, Japan. The event featured the semi-finals and final of the Jewels Featherweight Queen tournament, which determined the f ...
'' on . She won the fight by split decision. Yamaguchi fought outside Japan for the first time in her MMA career when she faced Katja Kankaanpää at Botnia Punishment 11 on in Finland. She was defeated by unanimous decision. On , Yamaguchi faced Emi Tomimatsu in a rematch at ''Jewels 20th Ring''. She defeated Tomimatsu by unanimous decision. Yamaguchi next faced Megumi Fujii at '' Vale Tudo Japan 2012'' on . She was defeated by unanimous decision. On , Yamaguchi faced Seo Ye Jung at ''Jewels 24th Ring''. She defeated Jung by submission due to an armbar in the first round.


PXC

In her second fight outside Japan, Yamaguchi faced Patricia Vidonic at Pacific Xtreme Combat 40 on in Guam. She was defeated by split decision. In her sophomore bout in PXC, Yamaguchi faced Gina Iniong at PXC 43 on March 29, 2014. She lost the bout via split decision.


Deep Jewels

After Jewels brand was merged into Deep, Yamaguchi faced Yukiko Seki at Deep Jewels 4 on May 18, 2014. She won the bout via first-round technical submission. In her sophomore bout in the promotion, Yamaguchi faced Ayaka Hamasaki at Deep - Dream Impact 2014: Omisoka Special on December 31, 2014. She lost the bout via unanimous decision. She was then scheduled to face Ayaka Miura at Deep Jewels 7 on February 20, 2015. However, Miura withdrew from the bout and was replaced by Miyoko Kusaka. Yamaguchi won the bout via first-minute knockout.


Deep Jewels Featherweight GP and championship

In May 2015, Yamaguchi entered into a single-day, four-woman featherweight grand prix which would crown the vacant Jewels Atomweight champion. She claimed the title by first defeating
Mina Kurobe is a Japanese mixed martial artist, currently fighting in the super atomweight division of Shooto, where she is the former and inaugural Shooto Super Atomweight champion. A professional competitor since 2012, Kurobe is also the former DEEP JEW ...
and then
Satomi Takano is a Japanese mixed martial artist, currently competing in the atomweight division of Shooto, where she is the current Shooto Super Atomweight champion. Mixed martial arts career DEEP JEWELS Early career Takano made her professional debut agai ...
.


Return attempt to PXC

Yamaguchi was scheduled to face Tessa Simpson at PXC 52 on March 18, 2016. However, Yamaguchi withdrew from the bout citing an injury and was replaced by her latest opponent
Satomi Takano is a Japanese mixed martial artist, currently competing in the atomweight division of Shooto, where she is the current Shooto Super Atomweight champion. Mixed martial arts career DEEP JEWELS Early career Takano made her professional debut agai ...
.


ONE Championship and return to strawweight

In late March 2016, it was announced that Yamaguchi had signed with the ONE Championship, and would debut against Angela Lee for the inaugural ONE Women's Atomweight Championship at ONE Championship: Ascent to Power on May 6, 2016. She lost the bout via unanimous decision.


Post-title shot reign

In her sophomore bout in the promotion, Yamaguchi faced Istela Nunes at ONE Championship: Heroes of the World on August 13, 2016. Yamaguchi lost the bout via split decision.


Return to contention and title rematch

Yamaguchi then faced Jenny Huang at ONE Championship: Light of a Nation on June 30, 2017. She won the bout via second-round submission. She was then scheduled to challenge Angela Lee in a rematch for the ONE Women's Atomweight Championship at ONE Championship: Immortal Pursuit on November 24, 2017. However, Lee was involved in a car accident, the bout was scrapped and Yamaguchi faced Gina Iniong instead. She won the bout via unanimous decision. The title shot against Lee was then rebooked to take place at ONE Championship: Unstoppable Dreams on May 18, 2018. Despite knocking Lee down multiple times during the bout, Yamaguchi failed to capture the belt in her second attempt, losing via unanimous decision.


Winning streak

After the title shot loss, Yamaguchi faced Jomary Torres at ONE Championship: Destiny of Champions on December 7, 2018. She won the bout via unanimous decision. She was then scheduled to face Bo Meng at ONE Championship: Call to Greatness on February 22, 2019. However, the bout was scrapped as Meng withdrew from the bout due to an injury. She then faced Kseniya Lachkova at ONE Championship: A New Era on March 31, 2019. She won the bout via third-round submission. Meng bout was then rebooked to take place at ONE Championship: Enter the Dragon on May 17, 2019. However Meng bowed out from the bout again due to an injury and was replaced by Laura Balin. Yamaguchi won the bout via first-round submission. She then faced Jenny Huang in a rematch at ONE Championship: Century on October 13, 2019. She won the bout via unanimous decision.


Losing streak and departure from ONE

The bout with Bo Meng was rebooked for the third time to take place at ONE Championship: King of the Jungle on February 28, 2020. Meng the withdrew from the bout once again and was replaced by
Denice Zamboanga Denice Zamboanga (; born 14 January 1997) is a Filipino female mixed martial artist. She is ranked #2 in the ONE Championship Women's Atomweight rankings. Background Zamboanga was born and raised in Quezon City, Philippines, and her older bro ...
. Yamaguchi lost the bout via unanimous decision. Yamaguchi faced Julie Mezabarba as part of an alternate bout for the Atomweight World Grand-Prix at ONE Championship: Empower on September 3, 2021. She lost the bout via unanimous decision. Yamaguchi faced Jihin Radzuan at ONE: Bad Blood on February 11, 2022, as a late notice replacement for Jenelyn Olsim. She lost the bout via unanimous decision.


Rizin FF

In order to finish her career in her native Japan, she was granted an early release from ONE and subsequently signed with
Rizin Fighting Federation Rizin Fighting Federation (Rizin FF or Rizin) is a Japanese mixed martial arts organization created in 2015 by the former Pride Fighting Championships and Dream Stage Entertainment president Nobuyuki Sakakibara. Rizin was founded to be the spir ...
. She dropped to super atomweight division and made her promotional debut against Kanna Asakura on April 29, 2023, at Rizin Landmark 5. She lost the bout via unanimous decision.


Submission grappling and shoot boxing career

Yamaguchi tried her hand in submission grappling, first in the ''
Abu Dhabi Combat Club The ADCC Submission Fighting World Championship, is an international submission wrestling, submission grappling competition, organised by the Abu Dhabi Combat Club (ADCC). The inaugural tournament was held in Abu Dhabi, UAE in 1998. It has been ...
Japan Trial final qualifier'' in the under-55 kg class, where she was defeated by points by
Yasuko Mogi Yasuko (written: , , , , , , , , or ) is a feminine Japanese given name. Notable people with the name include: *, Japanese empress *, Japanese manga artist *, Japanese swimmer *, Japanese empress consort * Yasuko Harada (原田康子, 19282009), ...
on . In her second and final submission grappling match, she was once again defeated by points; this time by women's MMA star Miku Matsumoto at ''DEEP X03'' on . Yamaguchi has had a more successful run in shoot boxing. She began competing on , in the shoot boxing tournament ''Girls S-Cup 2009'', where she defeated by decision South Korean female
Muay thai Muay Thai ( th, มวยไทย, , ), sometimes referred to as Thai boxing, is a combat sport that uses stand-up striking along with various clinching techniques. This discipline is known as the "art of eight limbs", as it is characterised ...
kickboxer Su Jeong Lim and fellow mixed martial artist and karateka Madoka Okada before losing against female shoot boxing rising star Rena Kubota in the tournament final. Yamaguchi won her next two bouts by decision. She participated in the shoot boxing ''Girls S-Cup 2010'', defeating Samanta van Dole by technical submission (standing guillotine choke) and losing against Ai Takahashi by unanimous decision after an extra round. On , Yamaguchi entered the ''2011 Shoot Boxing Girls S-Cup'' tournament. She faced Mina in the opening round and was defeated by majority decision. Yamaguchi entered the ''2012 Shoot Boxing Girls S-Cup'' on . She defeated Namtarn Por Munagpetch and Lorena Klijn to advance to the final round, but lost to Rena Kubota via unanimous decision in the tournament final. Yamaguchi faced Lorena Klijn in a rematch at ''Shoot Boxing 2013: Act.3'' on . She was defeated by unanimous decision. Yamaguchi was scheduled to compete against Du Peiling at the ''2013 Shoot Boxing Girls S-Cup Japan Midsummer Festival'' on . However, Peiling suffered an injury and Yamaguchi instead faced Chihiro Kira. She defeated Kira by unanimous decision. Yamaguchi faced Danielle Kelly in a grappling match at ONE: X on March 26, 2022. They grappled to a draw after 12 minutes after neither could find the submission.


Championships and accomplishments


Mixed martial arts

* Jewels ** Deep Jewels Atomweight Champion (one time; former) * Smackgirl **Smackgirl-F The Next Cinderella Tournament 2007 Lightweight winner *Greatest Common Multiple **Valkyrie Featherweight Tournament winner **Valkyrie Featherweight Champion (one time; last) *
MMAJunkie.com MMA Junkie is a news website that covers the sport of mixed martial arts (MMA). It was founded in 2006, and is owned by Gannett Company since 2011. The site and its content have been featured in ''Time (magazine), Time'' magazine'', ''ESPN The Ma ...
** 2016 May Fight of the Month vs. Angela Lee


Shoot boxing

*2009 Shoot Boxing Girls S-Cup runner-up *2012 Shoot Boxing Girls S-Cup runner-up


Mixed martial arts record

, - , Loss , align=center, , Kanna Asakura , Decision (unanimous) , Rizin Landmark 5 , , align=center, 3 , align=center, 5:00 , Tokyo, Japan , , - , Loss , align=center, , Jihin Radzuan , Decision (unanimous) , ONE: Bad Blood , , align=center, 3 , align=center, 5:00 , Kallang, Singapore , , - , Loss , align=center, , Julie Mezabarba , Decision (unanimous) , ONE: Empower , , align=center, 3 , align=center, 5:00 , Kallang, Singapore , , - , Loss , align=center, ,
Denice Zamboanga Denice Zamboanga (; born 14 January 1997) is a Filipino female mixed martial artist. She is ranked #2 in the ONE Championship Women's Atomweight rankings. Background Zamboanga was born and raised in Quezon City, Philippines, and her older bro ...
, Decision (unanimous) , ONE: King of the Jungle , , align=center, 3 , align=center, 5:00 , Kallang, Singapore , , - , Win , align=center, 21–11–1 , Jenny Huang , Decision (unanimous) , ONE: Century Part 2 , , , align=center, 3 , align=center, 5:00 , Tokyo, Japan , , - , Win , align=center, 20–11–1 , Laura Balin , Submission (Armbar) , ONE: Enter the Dragon , , , align=center, 1 , align=center, 3:46 , Kallang , Singapore , , - , Win , align=center, 19–11–1 , Kseniya Lachkova , Submission (Armbar) , ONE: A New Era , , , align=center, 3 , align=center, 3:18 , Tokyo , Japan , , - , Win , align=center, 18–11–1 , Jomary Torres , Decision (unanimous) , ONE: Destiny of Champions , , align=center, 3 , align=center, 5:00 , Kuala Lumpur, Malaysia , , - , Loss , align=center, 17–11–1 , Angela Lee , Decision (unanimous) , ONE: Unstoppable Dreams , , align=center, 5 , align=center, 5:00 , Kallang, Singapore , , - , Win , align=center, 17–10–1 , Gina Iniong , Decision (unanimous) , ONE: Immortal Pursuit , , align=center, 3 , align=center, 5:00 , Kallang, Singapore , , - , Win , align=center, 16–10–1 , Jenny Huang , Submission (rear-naked choke) , ONE: Light of a Nation , , align=center, 2 , align=center, 4:00 , Yangon, Myanmar , , - , Loss , align=center, 15–10–1 , Istela Nunes , Decision (split) , ONE: Heroes of the World , , align=center, 3 , align=center, 5:00 , Macau, China , , - , Loss , align=center, 15–9–1 , Angela Lee , Decision (unanimous) , ONE: Ascent to Power , , align=center, 5 , align=center, 5:00 , Kallang, Singapore , , - , Win , align=center, 15–8–1 ,
Satomi Takano is a Japanese mixed martial artist, currently competing in the atomweight division of Shooto, where she is the current Shooto Super Atomweight champion. Mixed martial arts career DEEP JEWELS Early career Takano made her professional debut agai ...
, TKO (punches) , rowspan=2 , Deep Jewels 8 , rowspan=2 , , align=center, 2 , align=center, 4:57 , rowspan=2 , Tokyo, Japan , , - , Win , align=center, 14–8–1 ,
Mina Kurobe is a Japanese mixed martial artist, currently fighting in the super atomweight division of Shooto, where she is the former and inaugural Shooto Super Atomweight champion. A professional competitor since 2012, Kurobe is also the former DEEP JEW ...
, Decision (unanimous) , align=center, 2 , align=center, 5:00 , , - , Win , align=center, 13–8–1 , Miyoko Kusaka , KO (knee to the body) , Deep Jewels 7 , , align=center, 1 , align=center, 0:44 , Tokyo, Japan , , - , Loss , align=center, 12–8–1 , Ayaka Hamasaki , Decision (unanimous) , Deep - Dream Impact 2014: Omisoka Special , , align=center, 2 , align=center, 5:00 , Saitama, Japan , , - , Win , align=center, 12–7–1 , Yukiko Seki , Technical Submission (rear-naked choke) , Deep-Jewels 4 , , align=center, 1 , align=center, 3:17 , Tokyo, Japan , , - , Loss , align=center, 11–7–1 , Gina Iniong , Decision (split) , Pacific Xtreme Combat 43 , , align=center, 3 , align=center, 5:00 , National Capital Region, Philippines , , - , Loss , align=center, 11–6–1 , Patricia Vidonic , Decision (split) , Pacific Xtreme Combat 40 , , align=center, 3 , align=center, 5:00 , Mangilao, Guam, United States , , - , Win , align=center, 11–5–1 , Seo Ye Jung , Submission (armbar) , Jewels 24th Ring , , align=center, 1 , align=center, 1:55 , Kabukicho, Tokyo, Japan , , - , Loss , align=center, 10–5–1 , Megumi Fujii , Decision (unanimous) , Vale Tudo Japan 2012 , , align=center, 2 , align=center, 5:00 , Shibuya, Tokyo, Japan , , - , Win , align=center, 10–4–1 , Emi Tomimatsu , Decision (unanimous) , Jewels 20th Ring , , align=center, 2 , align=center, 5:00 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Loss , align=center, 9–4–1 , Katja Kankaanpää , Decision (unanimous) , Botnia Punishment 11: Kankaanpää vs. Yamaguchi , , align=center, 3 , align=center, 5:00 ,
Seinäjoki Seinäjoki (; "Wall River"; la, Wegelia, formerly sv, Östermyra) is a city located in South Ostrobothnia, Finland; east of Vaasa, north of Tampere, west of Jyväskylä and southwest of Oulu. Seinäjoki originated around the Östermyra bru ...
, Finland , , - , Win , align=center, 9–3–1 , Mika Nagano , Decision (split) ,
Jewels 17th Ring ''Jewels 17th Ring'' was a mixed martial arts (MMA) event held by promotion Jewels on at Shinjuku Face in Kabukicho, Tokyo, Japan. The event featured the semi-finals and final of the Jewels Featherweight Queen tournament, which determined the f ...
, , align=center, 2 , align=center, 5:00 , Kabukicho, Tokyo, Japan , , - , Loss , align=center, 8–3–1 , Seo Hee Ham , Decision (unanimous) ,
Jewels 15th Ring ''Jewels 15th Ring'' was a mixed martial arts (MMA) event held by promotion Jewels on at Shinjuku Face in Kabukicho, Tokyo, Japan. As in the previous Jewels event, ''15th Ring'' featured a Jewels vs. Valkyrie theme, pitting fighters from both p ...
, , align=center, 2 , align=center, 5:00 , Kabukicho, Tokyo, Japan , , - , Win , align=center, 8–2–1 , Akiko Naito , Submission (armbar) , Pancrase: Impressive Tour 4 , , align=center, 1 , align=center, 3:52 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Win , align=center, 7–2–1 , Tomomi Sunaba , Decision (majority) , Pancrase: Impressive Tour 3 , , align=center, 2 , align=center, 5:00 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Draw , align=center, 6–2–1 , Kyoko Takabayashi , Draw (majority) , Valkyrie 08 , , align=center, 3 , align=center, 5:00 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Win , align=center, 6–2 , Yuka Tsuji , Submission (rear-naked choke) , Valkyrie 04 , , align=center, 1 , align=center, 1:16 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Win , align=center, 5–2 , Kyoko Takabayashi , Decision (split) , Cage Force & Valkyrie , , align=center, 3 , align=center, 3:00 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Win , align=center, 4–2 , Emi Fujino , Decision (unanimous) , Valkyrie 02 , , align=center, 3 , align=center, 3:00 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Loss , align=center, 3–2 , Yuka Tsuji , Decision (unanimous) , Valkyrie 01 , , align=center, 3 , align=center, 3:00 ,
Koto Koto may refer to: * Koto (band), an Italian synth pop group * Koto (instrument), a Japanese musical instrument * Koto (kana), a ligature of two Japanese katakana * Koto (traditional clothing), a traditional dress made by Afro-Surinamese women * ...
, Tokyo, Japan , , - , Loss , align=center, 3–1 , Emi Fujino , Decision (split) , Smackgirl 7th Anniversary: Starting Over , , align=center, 2 , align=center, 5:00 , Bunkyo, Tokyo, Japan , , - , Win , align=center, 3–0 , Emi Tomimatsu , Decision (split) , Smackgirl 2007: Queens' Hottest Summer , , align=center, 2 , align=center, 5:00 , Bunkyo, Tokyo, Japan , , - , Win , align=center, 2–0 , Saori Ishioka , Submission (kneebar) , Smackgirl-F 2007: The Next Cinderella 2007 2nd Stage , , align=center, 2 , align=center, 1:24 , Bunkyo, Tokyo, Japan , , - , Win , align=center, 1–0 , Anna Saito , Submission (rear-naked choke) , Smackgirl-F 2007: The Next Cinderella Tournament 2007 First Stage , , align=center, 1 , align=center, 4:53 , Kabukicho, Tokyo, Japan ,


Submission grappling record

, - , , Draw , Danielle Kelly , ONE: X , Kallang, Singapore , Decision , 1 , 12:00 , 0-2-1 , , - , , Loss , Miku Matsumoto , DEEP X03 , Tokyo,
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 north ...
, Points (4-10) , 2 , 4:00 , 0-2-0 , , - , , Loss ,
Yasuko Mogi Yasuko (written: , , , , , , , , or ) is a feminine Japanese given name. Notable people with the name include: *, Japanese empress *, Japanese manga artist *, Japanese swimmer *, Japanese empress consort * Yasuko Harada (原田康子, 19282009), ...
, Abu Dhabi Combat Club Japan Trial final qualifier , Tokyo,
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 north ...
, Points (2-6) , N/A , N/A , 0-1-0 , Women under-55 kg class - 1st round , - , colspan=10 , ''Legend'':


Shoot boxing record

, - style="background:#fbb;" , 2015-08-21, , Loss, , align=left,
MIO Mio or MIO may refer to: shortened form of Mioritic Shepherd dog or Mioritic sheepdog; a Romanian mountain dog. Places * Mio, Michigan, a town in the US Music * ''Mío'', 2011 album by David Bustamante * "Mío", 1992 song by Paulina Rubio Bra ...
, , Shoot Boxing Girls S-Cup 2015 Japan Tournament, Semi Final, , Tokyo,
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 north ...
, , Ext.R Decision (Unanimous) , , 4 , , 3:00, , 9-6-0 , - style="background:#cfc;" , 2015-08-21, , Win, , align=left, Michi , , Shoot Boxing Girls S-Cup 2015 Japan Tournament, Quarter Final, , Tokyo,
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 north ...
, , Decision (Unanimous) , , 4 , , 3:00, , 9-5-0 , - bgcolor="CCFFCC" , 2013-08-03 , , Win , , align=left, Chihiro Kira , , Shoot Boxing Girls S-Cup 2013 , , Tokyo, Japan , , Decision (unanimous) , , 3 , , 3:00 , , 8-5-0 , - bgcolor="FFBBBB" , 2013-06-23 , , Loss , , align=left, Lorena Klijn , , Shoot Boxing 2013: Act.3 , , Tokyo, Japan , , Decision (unanimous) , , 3 , , 3:00 , , 7-5-0 , - bgcolor="FFBBBB" , 2012-08-25 , , Loss , , align=left, Rena Kubota , , Shoot Boxing Girls S-Cup 2012, final , , Tokyo, Japan , , Decision (unanimous) , , 3 , , 2:00 , , 7-4-0 , - bgcolor="CCFFCC" , 2012-08-25 , , Win , , align=left, Lorena Klijn , , Shoot Boxing Girls S-Cup 2012, semi-finals , , Tokyo, Japan , , Decision (unanimous) , , 4 (Ex.1) , , 2:00 , , 7-3-0 , - ! style=background:white colspan=9 , , - , - bgcolor="CCFFCC" , 2012-08-25 , , Win , , align=left, Namtarn Por Munagpetch , , Shoot Boxing Girls S-Cup 2012, first round , , Tokyo, Japan , , Decision (unanimous) , , 4 (Ex.1) , , 2:00 , , 6-3-0 , - bgcolor="FFBBBB" , 2011-08-19 , , Loss , , align=left, Mina , , Shoot Boxing Girls S-Cup 2011, first round , , Tokyo, Japan , , Decision (majority) , , 3 , , 2:00 , , 5-3-0 , - bgcolor="FFBBBB" , 2010-08-29 , , Loss , , align=left, Ai Takahashi , , Shoot Boxing Girls S-Cup 2010, semi-finals , , Tokyo, Japan , , Decision (unanimous) , , 4 (Ex.1) , , 2:00 , , 5-2-0 , - bgcolor="CCFFCC" , 2010-08-29 , , Win , , align=left, Samanta van Dole , , Shoot Boxing Girls S-Cup 2010, first round , , Tokyo, Japan , , TKO (Technical submission, standing guillotine choke) , , 3 , , 1:45 , , 5-1-0 , - ! style=background:white colspan=9 , , - , - bgcolor="CCFFCC" , 2010-06-06 , , Win , , align=left, Ikue Tanimura , , Shoot Boxing 25th anniversary series , , Tokyo, Japan , , Decision (unanimous) , , 3 , , 2:00 , , 4-1-0 , - bgcolor="CCFFCC" , 2009-11-18 , , Win , , align=left, Etsu Senchaigym , , Shoot Boxing 2009: Bushido , , Tokyo, Japan , , Decision (unanimous) , , 4 (Ex.1) , , 2:00 , , 3-1-0 , - bgcolor="FFBBBB" , 2009-08-23 , , Loss , , align=left, Rena Kubota , ,
Shoot Boxing Girls Tournament 2009 Girls S-Cup is an annual women's kickboxing tournament promoted by Takeshi Caesar's Shoot Boxing Association and competed under shoot boxing rules. The tournament format is the 8-woman single elimination. Caesar Gym star Rena Kubota has dominated ...
final , , Tokyo, Japan , , Decision (unanimous) , , 3 , , 2:00 , , 2-1-0 , - bgcolor="CCFFCC" , 2009-08-23 , , Win , , align=left, Madoka Okada , ,
Shoot Boxing Girls Tournament 2009 Girls S-Cup is an annual women's kickboxing tournament promoted by Takeshi Caesar's Shoot Boxing Association and competed under shoot boxing rules. The tournament format is the 8-woman single elimination. Caesar Gym star Rena Kubota has dominated ...
semi-finals , , Tokyo, Japan , , Decision (unanimous) , , 3 , , 2:00 , , 2-0-0 , - bgcolor="CCFFCC" , 2009-08-23 , , Win , , align=left, Su Jeong Lim , ,
Shoot Boxing Girls Tournament 2009 Girls S-Cup is an annual women's kickboxing tournament promoted by Takeshi Caesar's Shoot Boxing Association and competed under shoot boxing rules. The tournament format is the 8-woman single elimination. Caesar Gym star Rena Kubota has dominated ...
first round , , Tokyo, Japan , , Decision (unanimous) , , 3 , , 2:00 , , 1-0-0 , - , colspan=9 , ''Legend'':


See also

* List of current ONE fighters * List of female mixed martial artists * List of female kickboxers


References


External links

*
Profile
at Fightergirls.com

at shoot boxing
Official blog
{{DEFAULTSORT:Yamaguchi, Mei 1983 births Strawweight mixed martial artists Atomweight mixed martial artists Living people Japanese female mixed martial artists Mixed martial artists utilizing karate Mixed martial artists utilizing shootboxing Mixed martial artists utilizing wrestling Mixed martial artists utilizing Brazilian jiu-jitsu Japanese female karateka Japanese female kickboxers Female Brazilian jiu-jitsu practitioners Japanese practitioners of Brazilian jiu-jitsu People awarded a black belt in Brazilian jiu-jitsu Sportspeople from Tokyo ONE Championship mixed martial artists