Rio Maezawa

Born
Sep 16, 2008 (18 years old)
Events
3000 m

Rio Maezawa is a Japan middle-distance runner, born on September 16, 2008. She competes primarily in the 1500m, 3000m and 3000mSt.

Her personal bests include 4:47.08 in the 1500m, 10:13.74 in the 3000m and 11:48.63 in the 3000mSt. She is currently active on the international athletics circuit, representing Japan.

Personal best · 3000 m10:13.74
2025 season best10:28.71Oct 26, 2025 · Kusanagi Athletic Stadium, Shizuoka
Last competitionTokai High School Newcomers Track and Field ChampionshipsOct 26, 2025 · 10:28.71

As of Nov 14, 2026: 3000 m 10:13.74, 2025 season best 10:28.71 (Oct 26, 2025, Kusanagi Athletic Stadium, Shizuoka (JPN)) · Last competition: Tokai High School Newcomers Track and Field Championships, Oct 26, 2025, 10:28.71 · 18 years old

DisciplineResultAll-time
1500mFukuroi 2024Japan 1500 m all-time list4:47.08857 pts–
3000mIse 2024Japan 3000 m all-time list10:13.74873 pts–
3000mStShizuoka 2024Japan 3000 m steeplechase all-time list11:48.63850 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
20251500m 4:53.15–Jul 13, 2025Shizuoka Athletics Championships
20253000m 10:28.71–Oct 26, 2025Tokai High School Newcomers Track and Field Championships
20241500m 4:47.08–May 24, 2024Inter Highschool Shizuoka Meeting, Prefectural Shizuoka Stadium, Fukuroi
20243000m 10:13.74–Oct 27, 2024Tokai High School Newcomer Championship
20243000mSt 11:48.63–Jul 13, 2024Shizuoka Championship
FAQ

Frequently asked questions

Rio Maezawa's 3000 m personal best is 10:13.74, set on Oct 27, 2024 in Prefectural Stadium, Ise (JPN).

Rio Maezawa competes in the 3000 m.

2025 season best: 10:28.71, set on Oct 26, 2025 in Kusanagi Athletic Stadium, Shizuoka (JPN). Last competition: Tokai High School Newcomers Track and Field Championships on Oct 26, 2025, 10:28.71.