Shinma Okubo

JapanJapanActive
Born
Feb 6, 2008 (18 years old)
Events
300 Metres · 400 m

Shinma Okubo is a Japan sprinter, born on February 6, 2008. He competes primarily in the 100m, 400m and 4x100m.

His personal bests include 10.90 in the 100m, 48.01 in the 400m, 42.12 in the 4x100m, 3:05.09 in the 4x400m and 33.59 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 300 Metres33.59
2026 season best10.90Apr 5, 2026 · NITTAIDAI Athletic Stadium, Yokohama
2026 season best
Personal best · 400 m48.01
Last competitionJapanese U20 Championships, Kusanagi Athletic Stadium, ShizuokaOct 3, 2026 · 48.35
Japanese U20 Championships, Kusanagi Athletic Stadium, Shizuoka

As of Nov 13, 2026: 300 Metres 33.59, 400 m 48.01, 2026 season best 10.90 (Apr 5, 2026, NITTAIDAI Athletic Stadium, Yokohama (JPN)) · Last competition: Japanese U20 Championships, Kusanagi Athletic Stadium, Shizuoka, Oct 3, 2026, 48.35 · 18 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
100mYokohama 2026Japan 100 m all-time list10.90916 pts––
400mFukuroi 2024Japan 400 m all-time list48.01980 pts––
4x100mUtsunomiya 2024Japan 4 × 100 m all-time list42.12––
4x400mUtsunomiya 2026Japan 4 × 400 m all-time list3:05.09–#357
300mIse 202533.591,020 pts––

Progression

SeasonDisciplineResultWindDateCompetitions
2026100m 10.90-0.5Apr 5, 202651st University inter-College Track and Field Tournament
2026400m 48.02–Apr 24, 2026All Japan University Track & Field Challenge
20264x400m 3:05.09–May 24, 2026The 105th Kanto Inter-University Track＆Field Championships
2025300m 33.59–Oct 19, 202519th JAAF U18 Athletics Competition, Prefectural Stadium, Ise
2025400m 48.58–Jun 13, 2025Kanto High School Championships, Kanseki Stadium, Utsunomiya - South Kanto
20244x100m 42.12–Oct 19, 202428th Kanto High School Rookies' Championships
2024400m 48.01–Nov 2, 2024Ecopa Track Games, Prefectural Shizuoka Stadium, Fukuroi
20244x400m 3:13.50–Nov 2, 2024Ecopa Track Games, Prefectural Shizuoka Stadium, Fukuroi
FAQ

Frequently asked questions

Shinma Okubo's 300 Metres personal best is 33.59, set on Oct 19, 2025 in Prefectural Stadium, Ise (JPN).

Shinma Okubo competes in the 300 Metres and 400 m.

2026 season best: 10.90, set on Apr 5, 2026 in NITTAIDAI Athletic Stadium, Yokohama (JPN). Last competition: Japanese U20 Championships, Kusanagi Athletic Stadium, Shizuoka on Oct 3, 2026, 48.35.