Kaiou Kumagai

JapanJapanActive
Born
Aug 7, 2007 (19 years old)
Events
400 m · 200 m

Kaiou Kumagai is a Japan sprinter, born on August 7, 2007. He competes primarily in the 200m, 400m and 300m.

His personal bests include 21.83 in the 200m, 48.26 in the 400m and 34.46 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m48.26
2026 season best51.27Jun 19, 2026 · Yanmar Stadium Nagai, Osaka
2026 season best
Personal best · 200 m21.83
Last competitionThe 79th West-Japan Inter-Unversity Track＆ Field ChampionshipsJun 19, 2026 · 51.27
The 79th West-Japan Inter-Unversity Track＆ Field Championships

As of Nov 13, 2026: 400 m 48.26, 200 m 21.83, 2026 season best 51.27 (Jun 19, 2026, Yanmar Stadium Nagai, Osaka (JPN)) · Last competition: The 79th West-Japan Inter-Unversity Track＆ Field Championships, Jun 19, 2026, 51.27 · 19 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
200mShizuoka 2025Japan 200 m all-time list21.83949 pts–
400mFukuroi 2025Japan 400 m all-time list48.26964 pts–
300mIse 202434.46946 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026400m 51.27–Jun 19, 2026The 79th West-Japan Inter-Unversity Track＆ Field Championships
2025200m 21.83+1.6Jul 12, 2025Shizuoka Athletics Championships
2025400m 48.26–May 23, 2025Shizuoka High School Inter-High School Championships
2024200m 22.17+0.2Jul 13, 2024Shizuoka Championship
2024300m 34.46–Oct 19, 202418th JAAF U18 Athletics Competition, Prefectural Stadium, Ise
2024400m 49.19–Jul 14, 2024Shizuoka Championship
FAQ

Frequently asked questions

Kaiou Kumagai's 400 m personal best is 48.26, set on May 23, 2025 in Prefectural Shizuoka Stadium, Fukuroi (JPN).

Kaiou Kumagai competes in the 400 m and 200 m.

2026 season best: 51.27, set on Jun 19, 2026 in Yanmar Stadium Nagai, Osaka (JPN). Last competition: The 79th West-Japan Inter-Unversity Track＆ Field Championships on Jun 19, 2026, 51.27.