Kosei Ikejima

JapanJapanActive
Born
Feb 3, 2004 (22 years old)
Events
100 m · 200 m

Kosei Ikejima is a Japan sprinter, born on February 3, 2004. He competes primarily in the 100m, 200m and 4x100m.

His personal bests include 10.32 in the 100m, 20.77 in the 200m, 39.69 in the 4x100m and 34.16 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 100 m10.32
2026 season best10.47May 16, 2026 · ND Soft Stadium, Tendo
2026 season best
Personal best · 200 m20.77
Last competition23rd Tajima Naoto MemorialOct 25, 2026 · 21.50
23rd Tajima Naoto Memorial

As of Nov 13, 2026: 100 m 10.32, 200 m 20.77, 2026 season best 10.47 (May 16, 2026, ND Soft Stadium, Tendo (JPN)) · Last competition: 23rd Tajima Naoto Memorial, Oct 25, 2026, 21.50 · 22 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
100mSagamihara 2023Japan 100 m all-time list10.32*1,099 pts–
200mSagamihara 2025Japan 200 m all-time list20.77*1,102 pts–
4x100mYokohama 2025Japan 4 × 100 m all-time list39.69–
300mHikone 202534.16971 pts–

* Wind-assisted (> 2.0 m/s)

Progression

FAQ

Frequently asked questions

Kosei Ikejima's 100 m personal best is 10.32, set on May 11, 2023 in Gion Stadium, Sagamihara (JPN).

Kosei Ikejima competes in the 100 m and 200 m.

2026 season best: 10.47, set on May 16, 2026 in ND Soft Stadium, Tendo (JPN). Last competition: 23rd Tajima Naoto Memorial on Oct 25, 2026, 21.50.