Riko KUMAGAI

JapanJapanActive
Born
Aug 11, 2010 (16 years old)

Riko KUMAGAI is a Japan middle-distance runner, born on August 11, 2010. She competes primarily in the 800m, 1500m and 3000m.

Her personal bests include 2:21.07 in the 800m, 4:46.94 in the 1500m and 10:24.87 in the 3000m. She is currently active on the international athletics circuit, representing Japan.

2026 season best2:21.07Jun 20, 2026 · Seibu Ryokuchi Park Athletics Stadium, Kanazawa
2026 season best
Last competition79th Nagano Athletics ChampionshipsJul 12, 2026 · 4:46.94
79th Nagano Athletics Championships

As of Nov 15, 2026: 2026 season best 2:21.07 (Jun 20, 2026, Seibu Ryokuchi Park Athletics Stadium, Kanazawa (JPN)) · Last competition: 79th Nagano Athletics Championships, Jul 12, 2026, 4:46.94 · 16 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
800mKanazawa 2026Japan 800 m all-time list2:21.07816 pts–
1500mNagano 2026Japan 1500 m all-time list4:46.94858 pts–
3000mNagano 2026Japan 3000 m all-time list10:24.87840 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026800m 2:21.07–Jun 20, 2026The 65th Hokushinetsu High School Athletics Championship, Seibu Ryokuchi Park Athletics Stadium, Kanazawa
20261500m 4:46.94–Jul 12, 202679th Nagano Athletics Championships
20263000m 10:24.87–Jul 10, 202679th Nagano Athletics Championships