| Kei Koizumi 小泉 慶 | |
| Fullname: | Kei Koizumi |
| Birth Date: | 1995 4, df=yes |
| Birth Place: | Adachi, Tokyo, Japan |
| Height: | 1.73m (05.68feet) |
| Currentclub: | FC Tokyo |
| Clubnumber: | 37 |
| Position: | Defensive midfielder, right back |
| Youthclubs1: | Kashiwa Russell FC |
| Youthyears2: | 2002–2010 |
| Youthclubs2: | Yokohama F. Marinos |
| Youthyears3: | 2011–2013 |
| Youthclubs3: | RKU Kashiwa High School |
| Years1: | 2014–2017 |
| Caps1: | 110 |
| Goals1: | 4 |
| Years2: | 2015 |
| Clubs2: | → J.League U-22 (loan) |
| Caps2: | 1 |
| Goals2: | 0 |
| Years3: | 2018–2019 |
| Caps3: | 28 |
| Goals3: | 1 |
| Years4: | 2019–2021 |
| Caps4: | 46 |
| Goals4: | 1 |
| Years5: | 2021–2022 |
| Caps5: | 41 |
| Goals5: | 1 |
| Years6: | 2023– |
| Caps6: | 1 |
| Goals6: | 0 |
| Pcupdate: | 22:56, 21 February 2023 (UTC) |
is a Japanese footballer who plays as a defensive midfielder or right back for club FC Tokyo.[1]
Koizumi started his career as a junior player with Yokohama F. Marinos, but the club did not promote him to their Under-18 team. He entered Ryutsu Keizai University Kashiwa High School and started playing for the school. He subsequently became a regular in the school team that won the Prince Takamado Cup in 2013.[2]
In 2014, Koizumi joined J. League Division 1 club Albirex Niigata and has added some versatility to the Albirex squad. His ability to play in a number of positions across defence and midfield made him an attractive proposition and boss Masaaki Yanagishita was delighted to be able to prise him away from The Big Swan Stadium.[3]
| Club performance | League | Cup | League Cup | Continental | Total | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Club | League | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |
| Japan | League | Emperor's Cup | J. League Cup | Asia | Total | ||||||||
| 2014 | Albirex Niigata | J1 | 26 | 0 | 2 | 0 | 6 | 1 | colspan="2" | - | 34 | 1 | |
| 2015 | 21 | 2 | 0 | 0 | 5 | 0 | colspan="2" | - | 26 | 2 | |||
| 2016 | 30 | 0 | 1 | 0 | 4 | 0 | colspan="2" | - | 35 | 0 | |||
| 2017 | 33 | 2 | 1 | 0 | 0 | 0 | colspan="2" | - | 34 | 2 | |||
| Total | 110 | 4 | 4 | 0 | 15 | 1 | colspan="2" | - | 119 | 5 | |||
| 2015 | J.League U-22 (loan) | J3 | 1 | 0 | 0 | 0 | colspan="2" | - | colspan="2" | - | 1 | 0 | |
| Total | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |||
| 2018 | Kashiwa Reysol | J1 | 27 | 1 | 2 | 1 | 4 | 0 | 5 | 1 | 38 | 3 | |
| 2019 | J2 | 1 | 0 | 0 | 0 | 4 | 0 | colspan="2" | - | 5 | 0 | ||
| Total | 28 | 1 | 2 | 1 | 8 | 0 | 5 | 1 | 43 | 3 | |||
| 2019 | Kashima Antlers | J1 | 7 | 0 | 2 | 0 | 3 | 0 | 2 | 0 | 14 | 0 | |
| 2020 | 22 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 24 | 1 | |||
| 2021 | 17 | 0 | 1 | 0 | 5 | 0 | 0 | 0 | 23 | 0 | |||
| Total | 46 | 1 | 3 | 0 | 10 | 0 | 2 | 0 | 61 | 1 | |||
| 2021 | Sagan Tosu | J1 | 11 | 0 | 0 | 0 | 0 | 0 | colspan="2" | - | 11 | 0 | |
| 2022 | 30 | 1 | 2 | 0 | 2 | 0 | colspan="2" | - | 34 | 1 | |||
| Total | 41 | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 46 | 1 | |||
| 2023 | FC Tokyo | J1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |
| Total | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |||
| Career Total | 227 | 7 | 11 | 1 | 35 | 1 | 7 | 1 | 280 | 10 | |||