Mayu Yoshii

JapanJapanActive
Born
Sep 12, 2005 (21 years old)
Events
800 m · 400 m

Mayu Yoshii is a Japan sprinter, born on September 12, 2005. She competes primarily in the 400m, 800m and 4x400m.

Her personal bests include 55.75 in the 400m, 2:09.11 in the 800m and 3:35.41 in the 4x400m. She has earned 1 gold medal in major international competitions. She is currently active on the international athletics circuit, representing Japan.

Personal best · 800 m2:09.11
2026 season best55.61Aug 8, 2026 · Yanmar Stadium Nagai, Osaka
Personal best · 400 m55.75
Last competition95th Japan Inter-University Athletics ChampionshipsSep 5, 2026 · 55.76

As of Nov 8, 2026: 800 m 2:09.11, 400 m 55.75, 2026 season best 55.61 (Aug 8, 2026, Yanmar Stadium Nagai, Osaka (JPN)) · Last competition: 95th Japan Inter-University Athletics Championships, Sep 5, 2026, 55.76 · 21 years old

DisciplineResultAll-time
400mFukuroi 2024Japan 400 m all-time list55.75986 pts–
800mNiigata 2024Japan 800 m all-time list2:09.111,005 pts–
4x400mOkayama 2025Japan 4 × 400 m all-time list3:35.41–

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2026400m 55.61–Aug 8, 20261st ICAAK Athletics Games
20264x400m 3:41.31–Jun 21, 2026The 79th West-Japan Inter-Unversity Track& Field Championships
20254x400m 3:35.41–Jun 7, 202594th Japan Inter-University Athletics Championships
2024400m 55.75–Nov 2, 2024Ecopa Track Games, Prefectural Shizuoka Stadium, Fukuroi
2024800m 2:09.11–Jun 29, 2024Japanese U20 Championships, Denka Big Swan Stadium, Niigata
20244x400m 3:40.67–Jul 7, 2024West Japan Inter University Track&Field Championships, Hakatanomori Athletic Stadium, Fukuoka
2023800m 2:11.86–Aug 4, 2023Inter-High School Championships, Atsubetsu Park Stadium, Sapporo
2022400m 57.51–Oct 8, 2022Universiade Commemorative Stadium, Kobe (JPN)
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FAQ

Frequently asked questions

Mayu Yoshii's 800 m personal best is 2:09.11, set on Jun 29, 2024 in Denka Big Swan Stadium, Niigata (JPN).

Mayu Yoshii competes in the 800 m and 400 m.

2026 season best: 55.61, set on Aug 8, 2026 in Yanmar Stadium Nagai, Osaka (JPN). Last competition: 95th Japan Inter-University Athletics Championships on Sep 5, 2026, 55.76.