KT
Kosuke Tsuitsui

Kosuke Tsuitsui

JPNJPNMen
Birth dateMar 2, 2001
Height-
Weight-

Kosuke Tsuitsui is a Japan sprinter, born on March 2, 2001. He competes primarily in the 400m, 800m and 4x200Metre.

His personal bests include 48.34 in the 400m, 1:48.92 in the 800m and 1:26.62 in the 4x200Metre. He is currently active on the international athletics circuit, representing Japan.

Key facts
800 m
1:48.92
400 m
48.34
2024 season best
1:51.39
Aug 11, 2024 · Edogawa Stadium, Tokyo (JPN)
2024 season best
Last competition
93rd Japan Inter-University Athletics Championships
Sep 21, 2024 · 1:53.51
93rd Japan Inter-University Athletics Championships
Age
25 years old

As of Sep 12, 2026: 800 m 1:48.92, 400 m 48.34, 2024 season best 1:51.39 (Aug 11, 2024, Edogawa Stadium, Tokyo (JPN)) · Last competition: 93rd Japan Inter-University Athletics Championships, Sep 21, 2024, 1:53.51 · 25 years old

PB

Personal bests

48.34
1:48.92
1:26.62

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2024
4x200Metre
1:26.62-Jul 6, 2024-The 100th WASEDA & KEIO Athletic Meet, Keio Univ. Hiyoshi Athletics Field, Yokohama
2024
800m
1:51.39-Aug 11, 2024
↑
14th wttk & DEN-EN Club Middle Distance Record Challenge
2023
400m
49.91-Mar 19, 2023
↓
KGRR Spring Challenge Meet 2023
2023
800m
1:49.61-May 3, 2023
↑
38th Shizuoka International Athletics Meet, Prefectural Shizuoka Stadium, Fukuroi
2022
400m
48.34-Jul 17, 2022
↓
Municipal Mizuho Stadium, Nagoya (JPN)
2022
800m
1:48.92-Jul 9, 2022
↑
Municipal Stadium, Kitami (JPN)
2021
800m
1:53.93-Oct 23, 2021
↑
Mikio Oda Memorial Athletic Field, Tokorozawa (JPN)
2018
800m
1:54.37-Aug 4, 2018
↑
Ise (JPN)

2024

10 performances
DisciplineResultWindDateCompetitions
800m
1:53.51-Sep 2193rd Japan Inter-University Athletics Championships
800m
1:53.51-Sep 2093rd Japan Inter-University Athletics Championships
800m
1:51.39-Aug 1114th wttk & DEN-EN Club Middle Distance Record Challenge
800m
1:52.32-Jul 20Hokuren Distance Challenge - Chitose, Aoba Park Athletic Field, Chitose
800m
1:53.67-Jul 17Hokuren Distance Challenge - Fukagawa
4x200Metre
1:26.62-Jul 6The 100th WASEDA & KEIO Athletic Meet, Keio Univ. Hiyoshi Athletics Field, Yokohama
800m
1:54.32-May 11The 103th Kanto Inter-University Track＆Field Championships, National Stadium, Tokyo
800m
1:54.32-May 10The 103th Kanto Inter-University Track＆Field Championships, National Stadium, Tokyo
800m
1:51.84-May 339th Shizuoka International Athletics Meet, Prefectural Shizuoka Stadium, Fukuroi
800m
1:51.76-Apr 6The 57th Tokyo Big 6, Keio Univ. Hiyoshi Athletics Field, Yokohama - Open Event

2023

19 performances
DisciplineResultWindDateCompetitions
800m
1:50.73-Oct 1Yogibo Athletics Challenge Cup 2023, Denka Big Swan Stadium, Niigata
800m
1:50.73-Sep 30Yogibo Athletics Challenge Cup 2023, Denka Big Swan Stadium, Niigata
800m
1:54.20-Sep 1692nd Japan Inter-University Athletics Championships, Prefectural Stadium, Kumagaya
800m
1:50.84-Sep 1692nd Japan Inter-University Athletics Championships, Prefectural Stadium, Kumagaya
800m
1:50.40-Jul 22The 18th Twilight Games, AGF Field, Tokyo
800m
1:52.81-Jul 15Hokuren Distance Challenge - Chitose
800m
1:50.04-Jul 1All Star Night Games, Lemon Gas Stadium, Hiratsuka
800m
1:52.61-Jun 3Japanese Championships, Yanmar Stadium Nagai, Osaka
800m
1:52.61-Jun 1Japanese Championships, Yanmar Stadium Nagai, Osaka
800m
1:51.48-May 14102nd Kanto Inter-University Track & Field Championships, Gion Stadium, Sagamihara - 2nd Tier
800m
1:51.43-May 13102nd Kanto Inter-University Track & Field Championships, Gion Stadium, Sagamihara - 2nd Tier
800m
1:51.86-May 13102nd Kanto Inter-University Track & Field Championships, Gion Stadium, Sagamihara - 2nd Tier
800m
1:49.61-May 338th Shizuoka International Athletics Meet, Prefectural Shizuoka Stadium, Fukuroi
800m
1:51.86-Apr 23All Japan University Track & Field Challenge
800m
1:51.78-Apr 23All Japan University Track & Field Challenge
800m
1:51.86-Apr 22All Japan University Track & Field Challenge
800m
1:51.11-Apr 2The 56th Tokyo Big6 Track Field League, National Stadium, Tokyo - Open Event
400m
49.91-Mar 19KGRR Spring Challenge Meet 2023
400m
49.91-Mar 17KGRR Spring Challenge Meet 2023

2022

13 performances
DisciplineResultWindDateCompetitions
800m
1:51.92-Sep 1091st Japan Inter-University Athletics Championships, Takebishi Stadium, Kyoto
800m
1:53.54-Sep 1091st Japan Inter-University Athletics Championships, Takebishi Stadium, Kyoto
800m
1:51.17-Aug 7Twilight Games, Keio Univ. Hiyoshi Athletics Field, Yokohama
400m
48.81-Jul 1782nd Aichi Ch., Municipal Mizuho Stadium, Nagoya - Qualifier Prelims
400m
48.34-Jul 1782nd Aichi Ch., Municipal Mizuho Stadium, Nagoya
800m
1:48.92-Jul 9Hokuren Distance Challenge, Municipal Stadium, Kitami
800m
1:51.43-May 22101st Kanto Inter-University Athletics Championships, National Stadium, Tokyo
800m
1:50.61-May 21101st Kanto Inter-University Athletics Championships, National Stadium, Tokyo
800m
1:50.39-May 21101st Kanto Inter-University Athletics Championships, National Stadium, Tokyo
800m
1:51.90-May 1127th Nippon Sport Science University Competition, NITTAIDAI Athletic Stadium, Yokohama
800m
1:52.38-Apr 955th Tokyo Big6 Baseball League Competition, Keio Univ. Hiyoshi Athletics Field, Yokohama
800m
1:53.48-Mar 2018th Waseda University Competition, Mikio Oda Memorial Athletic Field, Tokorozawa
400m
49.29-Mar 517th Waseda University Competition, Mikio Oda Memorial Athletic Field, Tokorozawa

2021

1 performance
DisciplineResultWindDateCompetitions
800m
1:53.93-Oct 2313th Waseda University Competition, Mikio Oda Memorial Athletic Field, Tokorozawa

2018

1 performance
DisciplineResultWindDateCompetitions
800m
1:54.37-Aug 4Ise Japenese High School Championships, Ise

Honours

No medals

FAQ

Frequently asked questions

What is Kosuke Tsuitsui's 800 m personal best?

Kosuke Tsuitsui's 800 m personal best is 1:48.92, set on Jul 9, 2022 in Municipal Stadium, Kitami (JPN).

Which events does Kosuke Tsuitsui compete in?

Kosuke Tsuitsui competes in the 800 m and 400 m.

How did Kosuke Tsuitsui perform in 2024?

2024 season best: 1:51.39, set on Aug 11, 2024 in Edogawa Stadium, Tokyo (JPN). Last competition: 93rd Japan Inter-University Athletics Championships on Sep 21, 2024, 1:53.51.