Koki Yamashita

JapanJapan
Born
Aug 19, 2006 (20 years old)
Events
300 Metres · 400 m

Koki Yamashita is a Japan sprinter, born on August 19, 2006. He competes primarily in the 400m and 300m.

His personal bests include 49.34 in the 400m and 34.67 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 300 Metres34.67
2025 season best50.58May 16, 2025 · Prefectural Stadium, Isahaya
2025 season best
Personal best · 400 m49.34
Last competitionNagasaki Athletics ChampionshipsMay 16, 2025 · 50.58
Nagasaki Athletics Championships

As of Nov 13, 2026: 300 Metres 34.67, 400 m 49.34, 2025 season best 50.58 (May 16, 2025, Prefectural Stadium, Isahaya (JPN)) · Last competition: Nagasaki Athletics Championships, May 16, 2025, 50.58 · 20 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
400mFukuoka 2024Japan 400 m all-time list49.34898 pts–
300mSaga 202434.67928 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2025400m 50.58–May 16, 2025Nagasaki Athletics Championships
2024300m 34.67–Oct 11, 2024National Sports Festival 2024 Saga
2024400m 49.34–Jul 28, 20242024 Inter-High School Championships
FAQ

Frequently asked questions

Koki Yamashita's 300 Metres personal best is 34.67, set on Oct 11, 2024 in Sunrise Park, Saga (JPN).

Koki Yamashita competes in the 300 Metres and 400 m.

2025 season best: 50.58, set on May 16, 2025 in Prefectural Stadium, Isahaya (JPN). Last competition: Nagasaki Athletics Championships on May 16, 2025, 50.58.