is a Japanese professional football manager and former player, who manages

J1 League The , known as the for sponsorship reasons, is the top level of the system. Founded in 1992, it is one of the most successful leagues in Asian club football. Contested by 18 clubs, it operates on a system of promotion and relegation with the ...

club

Kashima Antlers are a football club in Kashima, Ibaraki, currently playing in the J1 League, top tier of Japanese professional football leagues. The name ''Antlers'' is derived from the city name, Kashima, which literally means "deer island". The club has fin ...

. He also played for the Japan national team.

Club career

Iwamasa was born in Suo-Oshima, Yamaguchi on 30 January 1982. He was educated at and played for Iwakuni High School and

Tokyo Gakugei University Tokyo Gakugei University (東京学芸大学, ''Tōkyō gakugei daigaku'') is a national university in Koganei, Tokyo. Founded in 1873, it was chartered as a university in 1949. It is also known as ''Gakudai'' (学大) and TGU, for short. In ad ...

before turning professional. He started his professional career at

where he later became one of the club's longest serving players. He became a regular player at center back from late first season. The club won the champions in

for three years in a row (

2007 File:2007 Events Collage.png, From top left, clockwise: Steve Jobs unveils Apple Inc., Apple's first iPhone (1st generation), iPhone; TAM Airlines Flight 3054 overruns a runway and crashes into a gas station, killing almost 200 people; Former Pakis ...

–

2009 File:2009 Events Collage V2.png, From top left, clockwise: The vertical stabilizer of Air France Flight 447 is pulled out from the Atlantic Ocean; Barack Obama becomes the first African American to become President of the United States; Protests ...

) first time in J1 League history. He was also elected Best XI for three years in a row. The club also won

, 2010 Emperor's Cup,

2011 File:2011 Events Collage.png, From top left, clockwise: a protester partaking in Occupy Wall Street heralds the beginning of the Occupy movement; protests against Libyan dictator Muammar Gaddafi, who was killed that October; a young man celebrates ...

and 2012 J.League Cup. His opportunity to play decreased in 2013 and he left the club end of 2013 season. In 2014, he moved to

BEC Tero Sasana Police Tero Football Club ( th, สโมสรฟุตบอลโปลิศ-เทโร), formerly known as BEC Tero Sasana Football Club, is a Thai professional football club based in Bangkok. The club finished runners-up in the inaugural ...

, Thailand, and helped the club win

2014 Thai League Cup The Thai League Cup is a knock-out football tournament played in Thai sport. Some games are played as a single match, others are played as two-legged contests. The 2014 Thai League Cup kicked off on 1 February 2014 with the Bangkok & field regi ...

in which he scored a goal in the final match. In 2015, he returned to Japan, playing for Fagiano Okayama. In 2017, he moved to Regional Leagues club Tokyo United FC. He retired at the end of the 2018 season.

International career

Iwamasa was the captain of the Japan team that won the

2003 Summer Universiade The 2003 Summer Universiade, also known as the XXII Summer Universiade, took place in Daegu, South Korea. Emblem * The alphabet letter "U" and five stars, which is FISU's emblem, make up the basis of the emblem for the Daegu Universiade. * It sym ...

held in

Daegu Daegu (, , literally 'large hill', 대구광역시), formerly spelled Taegu and officially known as the Daegu Metropolitan City, is a city in South Korea. It is the third-largest urban agglomeration in South Korea after Seoul and Busan; it is ...

, South Korea, where he scored a goal in the final of the tournament. He received the first call-up for Japan national team in 2008 by newly appointed coach Takeshi Okada. On 10 October 2009, he made his international debut in a friendly match against

Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to ...

. He was also one of the final 23 Japan national football players participating in

2010 FIFA World Cup , image = 2010 FIFA World Cup.svg , size = 200px , caption = ''Ke Nako. (Tswana and Sotho for "It's time") Celebrate Africa's Humanity'It's time. Celebrate Africa's Humanity'' (English)''Dis tyd. Vier Afrika se mensd ...

although did not play any minute during the tournament. After 2010 World Cup, in January 2011, he was selected Japan for

2011 AFC Asian Cup The 2011 AFC Asian Cup was the 15th edition of the men's AFC Asian Cup, a quadrennial international football tournament organised by the Asian Football Confederation (AFC). The finals were held in Qatar from 7 to 29 January 2011. It was the fifte ...

by new manager Alberto Zaccheroni. At 2011 Asian Cup, he played in four matches and Japan won the champions. He played eight games for Japan until 2011.Japan National Football Team Database
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Managerial career

Iwamasa's first managerial appointment was in 2017 as player-coach for Tokyo United FC. After retiring as a player in 2018, in 2021 he became manager of Jobu University's football team. For the 2022 season, Iwamasa became the assistant manager of

and took charge of a number of games whilst new manager René Weiler awaited entry to the country due to COVID-19 quarantine restrictions. In August 2022, it was announced that Iwamasa would be promoted to manager of Kashima Antlers following the departure of Weiler.

Career statistics

Club

International

Honours

Kashima Antlers *

2008 File:2008 Events Collage.png, From left, clockwise: Lehman Brothers went bankrupt following the Subprime mortgage crisis; Cyclone Nargis killed more than 138,000 in Myanmar; A scene from the opening ceremony of the 2008 Summer Olympics in Beijing; ...

Emperor's Cup , commonly known as or also Japan FA Cup is a Japanese football competition. It has the longest tradition of any football match in Japan, dating back to 1921, before the formation of the J.League, Japan Football League and their predecessor, J ...

2010 File:2010 Events Collage New.png, From top left, clockwise: The 2010 Chile earthquake was one of the strongest recorded in history; The Eruption of Eyjafjallajökull in Iceland disrupts air travel in Europe; A scene from the opening ceremony of ...

* J.League Cup:

2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gat ...

Japanese Super Cup The , known as the for sponsorship reasons, is an annual one-match association football competition in Japan organised by J. League and the Japan Football Association (JFA). This competition serves as the season opener and is played between the r ...

BEC Tero Sasana *

Thai League Cup The League Cup ( th, ไทยลีกคัพ) is a football cup competition in Thailand. It is also known as Toyota League Cup for sponsorship reasons. It was re-formed during the 2010 domestic football league season in Thailand and runs alon ...

2014 File:2014 Events Collage.png, From top left, clockwise: Stocking up supplies and personal protective equipment (PPE) for the Western African Ebola virus epidemic; Citizens examining the ruins after the Chibok schoolgirls kidnapping; Bundles of wa ...

Japan *

AFC Asian Cup The AFC Asian Cup is the primary association football competition contested by the senior men's national teams of the members of the Asian Football Confederation (AFC), determining the continental champion of Asia. It is the second oldest cont ...

Individual *

J.League Best XI The J.League Best XI is an acknowledgement of the best eleven players in J.League. J1 League (1993–present) Multiple appearances Appearances by club Appearances by country * Only in two occasions there was a full-Japanese Best XI (20 ...

References

External links

* *
Japan National Football Team Database
* {{DEFAULTSORT:Iwamasa, Daiki 1982 births Living people Tokyo Gakugei University alumni Association football people from Yamaguchi Prefecture Japanese footballers Association football defenders Japan international footballers Universiade gold medalists for Japan Universiade medalists in football 2010 FIFA World Cup players 2011 AFC Asian Cup players J1 League players J2 League players Daiki Iwamasa Kashima Antlers players Daiki Iwamasa Fagiano Okayama players Japanese expatriate footballers Japanese expatriate sportspeople in Thailand Expatriate footballers in Thailand J1 League managers Kashima Antlers managers Tokyo United FC players