Kouki Ishimaru

JapanJapanActive
Born
Oct 27, 2004 (22 years old)
Events
200 m · 100 m

Kouki Ishimaru is a Japan sprinter, born on October 27, 2004. He competes primarily in the 100m, 200m and 400m.

His personal bests include 10.77 in the 100m, 21.39 in the 200m, 49.74 in the 400m and 34.39 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 200 m21.39
2026 season best21.44Oct 3, 2026 · Takebishi Stadium, Kyoto
2026 season best
Personal best · 100 m10.77
Last competitionDay 5, the 36th Nara City Athletics CircuitOct 3, 2026 · 10.82
Day 5, the 36th Nara City Athletics Circuit

As of Nov 13, 2026: 200 m 21.39, 100 m 10.77, 2026 season best 21.44 (Oct 3, 2026, Takebishi Stadium, Kyoto (JPN)) · Last competition: Day 5, the 36th Nara City Athletics Circuit, Oct 3, 2026, 10.82 · 22 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
100mOkinawa 2026Japan 100 m all-time list10.77*955 pts––
200mSagamihara 2024Japan 200 m all-time list21.391,011 pts––
400mOsaka 2022Japan 400 m all-time list49.74874 pts––
300mOkinawa 202634.39952 pts–#242

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
2026100m 10.77+3.1Mar 7, 2026Spring Track and Field Meet
2026200m 21.44+1.5Oct 3, 2026Day 5, the 36th Nara City Athletics Circuit
2026300m 34.39–Mar 8, 2026Spring Track and Field Meet
2025100m 10.82+1.8May 4, 20251st SANO Sprint
2025200m 21.41+1.4May 4, 20251st SANO Sprint
2024100m 10.94+0.6Apr 7, 202417th Iwakabe Cup, Athletic Park, Ageo
2024200m 21.39+0.4Sep 28, 202435th Kanto University Rookies Athletics Championships
2024400m 49.91–Nov 3, 2024Day seven , the 34th Nara City Athletics Circuit, Konoike Athletics Stadium, Nara
FAQ

Frequently asked questions

Kouki Ishimaru's 200 m personal best is 21.39, set on Sep 28, 2024 in Gion Stadium, Sagamihara (JPN).

Kouki Ishimaru competes in the 200 m and 100 m.

2026 season best: 21.44, set on Oct 3, 2026 in Takebishi Stadium, Kyoto (JPN). Last competition: Day 5, the 36th Nara City Athletics Circuit on Oct 3, 2026, 10.82.