So Kuboi

So Kuboi

JapanJapan
Born
Aug 30, 2003 (23 years old)
Events
100 m · 200 m

So Kuboi is a Japan sprinter, born on August 30, 2003. He competes primarily in the 100m, 200m and 400mH.

His personal bests include 10.23 in the 100m, 20.91 in the 200m, 55.59 in the 400mH, 38.68 in the 4x100m and 7.34 in the LJ. He has earned 1 gold medal in major international competitions. He is currently active on the international athletics circuit, representing Japan.

Personal best · 100 m10.23
2025 season best10.48Apr 25, 2025 · Lemon Gas Stadium, Hiratsuka
2025 season best
Personal best · 200 m20.91
Last competitionJapan Games, Athletic Stadium, HikoneOct 5, 2025 · 10.64
Japan Games, Athletic Stadium, Hikone

As of Nov 6, 2026: 100 m 10.23, 200 m 20.91, 2025 season best 10.48 (Apr 25, 2025, Lemon Gas Stadium, Hiratsuka (JPN)) · Last competition: Japan Games, Athletic Stadium, Hikone, Oct 5, 2025, 10.64 · 23 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
100mSagamihara 2023Japan 100 m all-time list10.23*1,128 pts–
200mFujiyoshida 2023Japan 200 m all-time list20.911,081 pts–
400mHTokushima 2021Japan 400 m hurdles all-time list55.59869 pts–
4x100mOkayama 2025Japan 4 × 100 m all-time list38.68–
LJTokushima 2020Japan Long Jump all-time list7.34995 pts–
60mIndoorOsaka 20226.791,048 pts–

* Wind-assisted (> 2.0 m/s)

Progression

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FAQ

Frequently asked questions

So Kuboi's 100 m personal best is 10.23, set on May 11, 2023 in Gion Stadium, Sagamihara (JPN).

So Kuboi competes in the 100 m and 200 m.

2025 season best: 10.48, set on Apr 25, 2025 in Lemon Gas Stadium, Hiratsuka (JPN). Last competition: Japan Games, Athletic Stadium, Hikone on Oct 5, 2025, 10.64.