Kosei Tateyama

JapanJapanActive
Born
May 24, 2003 (23 years old)
Events
200 m · 100 m

Kosei Tateyama is a Japan sprinter, born on May 24, 2003. He competes primarily in the 100m, 200m and 4x100m.

His personal bests include 10.82 in the 100m, 21.22 in the 200m, 39.80 in the 4x100m and 34.98 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 200 m21.22
2026 season best21.73Aug 11, 2026
2026 season best
Personal best · 100 m10.82
Last competitionAutumn Record MeetNov 7, 2026 · 10.58
Autumn Record Meet

As of Nov 14, 2026: 200 m 21.22, 100 m 10.82, 2026 season best 21.73 (Aug 11, 2026) · Last competition: Autumn Record Meet, Nov 7, 2026, 10.58 · 23 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
100mSaga 2020Japan 100 m all-time list10.82940 pts–
200mTokyo 2025Japan 200 m all-time list21.22*1,035 pts–
4x100mGifu 2025Japan 4 × 100 m all-time list39.80–
300mSaga 202134.98903 pts–

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
2026100m 10.58+3.9Nov 7, 2026Autumn Record Meet
2026200m 21.73-1.6Aug 11, 20262nd SANO Sprint, Seisyu KAIKA Stadium, Tochigi
2025100m 10.93+0.2Aug 11, 20252nd SANO Sprint, Athletic Park Stadium, Sano
2025200m 21.22+3.6May 18, 2025The 3rd Nihon University Competition, Nihon University Stadium, Tokyo
20254x100m 39.80–Jul 12, 2025Japanese Relays Championships, Nagaragawa Stadium, Gifu
2024200m 21.28-0.1Aug 25, 202479th Kyushu Athletics Championships, Prefectural Stadium, Okinawa
2023100m 11.08-2.0Aug 19, 202378th Kyushu Athletics Championships, Sunrise Park, Saga
2023200m 21.78+1.0Aug 20, 202378th Kyushu Athletics Championships, Sunrise Park, Saga
FAQ

Frequently asked questions

Kosei Tateyama's 200 m personal best is 21.22, set on May 18, 2025 in Nihon University Stadium, Tokyo (JPN).

Kosei Tateyama competes in the 200 m and 100 m.

2026 season best: 21.73, set on Aug 11, 2026. Last competition: Autumn Record Meet on Nov 7, 2026, 10.58.