Naoki Kai

JapanJapanActive
Born
Dec 19, 2003 (22 years old)
Events
200 m · 100 m

Naoki Kai is a Japan sprinter, born on December 19, 2003. He competes primarily in the 100m, 200m and 400m.

His personal bests include 10.78 in the 100m, 21.90 in the 200m, 49.53 in the 400m, 40.94 in the 4x100m and 3:13.52 in the 4x400m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 200 m21.90
2026 season best10.78May 24, 2026 · Takebishi Stadium, Kyoto
2026 season best
Personal best · 100 m10.78
Last competitionDay 5, the 36th Nara City Athletics CircuitOct 3, 2026 · 10.84
Day 5, the 36th Nara City Athletics Circuit

As of Nov 14, 2026: 200 m 21.90, 100 m 10.78, 2026 season best 10.78 (May 24, 2026, Takebishi Stadium, Kyoto (JPN)) · Last competition: Day 5, the 36th Nara City Athletics Circuit, Oct 3, 2026, 10.84 · 22 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
100mKyoto 2026Japan 100 m all-time list10.78952 pts–
200mOsaka 2024Japan 200 m all-time list21.90939 pts–
400mOsaka 2025Japan 400 m all-time list49.53886 pts–
4x100mFukuoka 2024Japan 4 × 100 m all-time list40.94–
4x400mKyoto 2023Japan 4 × 400 m all-time list3:13.52–
300mOsaka 202135.43867 pts–

Progression

FAQ

Frequently asked questions

Naoki Kai's 200 m personal best is 21.90, set on Aug 10, 2024 in Yanmar Stadium Nagai, Osaka (JPN).

Naoki Kai competes in the 200 m and 100 m.

2026 season best: 10.78, set on May 24, 2026 in Takebishi Stadium, Kyoto (JPN). Last competition: Day 5, the 36th Nara City Athletics Circuit on Oct 3, 2026, 10.84.