Ririka Miyachi

JapanJapanActive
Born
Oct 5, 2005 (21 years old)
Events
300 Metres · 400 m

Ririka Miyachi is a Japan sprinter, born on October 5, 2005. She competes primarily in the 100m, 200m and 400m.

Her personal bests include 12.42 in the 100m, 24.88 in the 200m, 54.17 in the 400m, 45.24 in the 4x100m and 3:40.67 in the 4x400m. She is currently active on the international athletics circuit, representing Japan.

Personal best · 300 Metres38.35
2026 season best40.34Apr 12, 2026 · Hamayama Park Athletic Field, Izumo
2026 season best
Personal best · 400 m54.17
Last competition95th Japan Inter-University Athletics ChampionshipsSep 5, 2026 · 57.66
95th Japan Inter-University Athletics Championships

As of Nov 8, 2026: 300 Metres 38.35, 400 m 54.17, 2026 season best 40.34 (Apr 12, 2026, Hamayama Park Athletic Field, Izumo (JPN)) · Last competition: 95th Japan Inter-University Athletics Championships, Sep 5, 2026, 57.66 · 21 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
100mSagamihara 2025Japan 100 m all-time list12.42910 pts––
200mFukui 2025Japan 200 m all-time list24.88953 pts––
400mYokohama 2025Japan 400 m all-time list54.171,044 pts––
4x100mOkayama 2025Japan 4 × 100 m all-time list45.24––
4x400mOkayama 2025Japan 4 × 400 m all-time list3:40.67––
300mKagoshima 202338.351,045 pts–#308

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2026100m 12.63-0.8Apr 12, 202680th Yoshioka Memorial Izumo Meet
2026200m 26.01+1.4Jun 21, 2026156th Nippon Sport Science University Competition
2026300m 40.34–Apr 12, 202680th Yoshioka Memorial Izumo Meet
2026400m 56.49–Jun 12, 2026Japanese Championships
20264x400m 3:42.79–May 24, 2026The 105th Kanto Inter-University Track＆Field Championships
2025100m 12.42+2.0Sep 26, 2025The 36th Rookie Athletics Championships and Relay Competition, Gion Stadium, Sagamihara
2025200m 24.88+0.5Aug 16, 2025Athlete Night Games Fukui 2025, Prefectural Stadium, Fukui
2025300m 42.01–Apr 13, 202579th Yoshioka Memorial Izumo Meet, Hamayama Park Athletic Field, Izumo
Compare me with Ririka Miyachi
FAQ

Frequently asked questions

Ririka Miyachi's 300 Metres personal best is 38.35, set on Oct 14, 2023 in Prefectural Stadium, Kagoshima (JPN).

Ririka Miyachi competes in the 300 Metres and 400 m.

2026 season best: 40.34, set on Apr 12, 2026 in Hamayama Park Athletic Field, Izumo (JPN). Last competition: 95th Japan Inter-University Athletics Championships on Sep 5, 2026, 57.66.