Ousei Iwamoto

JapanJapanActive
Born
May 5, 2008 (18 years old)
Events
300 Metres · 400 m

Ousei Iwamoto is a Japan sprinter, born on May 5, 2008. He competes primarily in the 400m, 800m and 300m.

His personal bests include 51.12 in the 400m, 1:57.69 in the 800m and 36.00 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 300 Metres36.00
2026 season best1:57.69Apr 26, 2026 · Municipal Stadium, Oita
2026 season best
Personal best · 400 m51.12
Last competitionThe 80th Oita Prefectural Championships, Municipal Stadium, OitaApr 26, 2026 · 1:57.69
The 80th Oita Prefectural Championships, Municipal Stadium, Oita

As of Nov 13, 2026: 300 Metres 36.00, 400 m 51.12, 2026 season best 1:57.69 (Apr 26, 2026, Municipal Stadium, Oita (JPN)) · Last competition: The 80th Oita Prefectural Championships, Municipal Stadium, Oita, Apr 26, 2026, 1:57.69 · 18 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
400mOita 2025Japan 400 m all-time list51.12793 pts–
800mOita 2026Japan 800 m all-time list1:57.69819 pts–
300mOita 202536.00822 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026800m 1:57.69–Apr 26, 2026The 80th Oita Prefectural Championships, Municipal Stadium, Oita
2025300m 36.00–Aug 22, 2025The 80th Kyusyu Athletics Championships, Showa Denko Stadium, Oita
2025400m 51.12–Apr 26, 2025The 79th Oita Prefectural Championships, Showa Denko Stadium, Oita
2024400m 51.49–May 24, 2024The 72nd Oita High School Championships
FAQ

Frequently asked questions

Ousei Iwamoto's 300 Metres personal best is 36.00, set on Aug 22, 2025 in Showa Denko Stadium, Oita (JPN).

Ousei Iwamoto competes in the 300 Metres and 400 m.

2026 season best: 1:57.69, set on Apr 26, 2026 in Municipal Stadium, Oita (JPN). Last competition: The 80th Oita Prefectural Championships, Municipal Stadium, Oita on Apr 26, 2026, 1:57.69.