Riho Miyauthi

JapanJapan
Born
Aug 22, 2003 (23 years old)
Events
400 m · 200 m

Riho Miyauthi is a Japan sprinter, born on August 22, 2003. She competes primarily in the 100m, 200m and 400m.

Her personal bests include 12.64 in the 100m, 25.49 in the 200m and 56.36 in the 400m. She is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m56.36
2025 season best56.91Jul 13, 2025 · Ehime Athletics Stadium, Matsuyama
2025 season best
Personal best · 200 m25.49
Last competitionThe 78th West-Japan Inter-Unversity Athletc ChampionshipsSep 12, 2025 · 57.68
The 78th West-Japan Inter-Unversity Athletc Championships

As of Nov 14, 2026: 400 m 56.36, 200 m 25.49, 2025 season best 56.91 (Jul 13, 2025, Ehime Athletics Stadium, Matsuyama (JPN)) · Last competition: The 78th West-Japan Inter-Unversity Athletc Championships, Sep 12, 2025, 57.68 · 23 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
100mMatsuyama 2021Japan 100 m all-time list12.64869 pts–
200mMatsuyama 2021Japan 200 m all-time list25.49897 pts–
400mMatsuyama 2021Japan 400 m all-time list56.36964 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2025200m 25.78+0.5Jul 12, 202580th Ehime Championships
2025400m 56.91–Jul 13, 202580th Ehime Championships
2024200m 25.82+1.6May 12, 202478th Chugoku-shikoku intercollegiate track and field competition, Hamayama Park Athletic Field, Izumo
2024400m 57.81–May 11, 202478th Chugoku-shikoku intercollegiate track and field competition, Hamayama Park Athletic Field, Izumo
2023200m 25.54-2.3Jul 15, 202378th Ehime Championships
2023400m 57.15–Jul 16, 202378th Ehime Championships
2022200m 25.85+1.9Oct 28, 2022Prefectural Stadium, Hiroshima (JPN)
2022400m 58.29–Jul 1, 2022Ehime Athletics Stadium, Matsuyama (JPN)
FAQ

Frequently asked questions

Riho Miyauthi's 400 m personal best is 56.36, set on Jun 19, 2021 in Ehime Athletics Stadium, Matsuyama (JPN).

Riho Miyauthi competes in the 400 m and 200 m.

2025 season best: 56.91, set on Jul 13, 2025 in Ehime Athletics Stadium, Matsuyama (JPN). Last competition: The 78th West-Japan Inter-Unversity Athletc Championships on Sep 12, 2025, 57.68.