Koki Maruyama

Koki Maruyama

JapanJapanActive
Born
Sep 10, 1999 (27 years old)
Events
Half Marathon · 10 Miles Road

Koki Maruyama is a Japan long-distance runner, born on September 10, 1999. He competes primarily in the 3000m, 5000m and 10000m.

His personal bests include 8:25.41 in the 3000m, 13:53.43 in the 5000m, 28:51.75 in the 10000m, 1:02:09 in the Semi and 47:16 in the 10MilesRoa. He is currently active on the international athletics circuit, representing Japan.

Personal best · Half Marathon1:02:09
2026 season best1:04:11Feb 8, 2026 · Ishin Me-Life Stadium, Yamaguchi
2026 season best
Personal best · 10 Miles Road47:16
Last competition54th Yamaguchi All-Corporate Half Marathon ChampionshipsFeb 8, 2026 · 1:04:11
54th Yamaguchi All-Corporate Half Marathon Championships

As of Nov 7, 2026: Half Marathon 1:02:09, 10 Miles Road 47:16, 2026 season best 1:04:11 (Feb 8, 2026, Ishin Me-Life Stadium, Yamaguchi (JPN)) · Last competition: 54th Yamaguchi All-Corporate Half Marathon Championships, Feb 8, 2026, 1:04:11 · 27 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
3000mUozu 2022Japan 3000 m all-time list8:25.41912 pts–
5000mYokohama 2022Japan 5000 m all-time list13:53.431,022 pts–
10000mInzai 2022Japan 10 000 m all-time list28:51.751,054 pts–
SemiYamaguchi 2024Japan Half Marathon all-time list1:02:091,102 pts–
10MilesRoaKumamoto 202447:16–

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2026Semi 1:04:11–Feb 8, 202654th Yamaguchi All-Corporate Half Marathon Championships
2025Semi 1:02:57–Feb 9, 202553rd Yamaguchi All-Corporate Half Marathon Championships, Ishin Me-Life Stadium, Yamaguchi
202410000m 29:05.41–Nov 23, 20242024 Hachioji Long Distance
202410MilesRoa 47:16–Dec 1, 2024Kumamoto Kosa 10 mile Road Race
2024Semi 1:02:09–Feb 11, 202452nd Yamaguchi All-Corporate Half Marathon Championships
20223000m 8:25.41–Jun 25, 2022Momoyama Athletic Park Stadium, Uozu (JPN)
20225000m 13:53.43–Jun 5, 2022NITTAIDAI Athletic Stadium, Yokohama (JPN)
202210000m 28:51.75–Oct 15, 2022Juntendo University Stadium, Inzai (JPN)
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FAQ

Frequently asked questions

Koki Maruyama's Half Marathon personal best is 1:02:09, set on Feb 11, 2024 in Ishin Me-Life Stadium, Yamaguchi (JPN).

Koki Maruyama competes in the Half Marathon and 10 Miles Road.

2026 season best: 1:04:11, set on Feb 8, 2026 in Ishin Me-Life Stadium, Yamaguchi (JPN). Last competition: 54th Yamaguchi All-Corporate Half Marathon Championships on Feb 8, 2026, 1:04:11.