Kotaro Hamaguchi
- Born
- Aug 14, 2001 (25 years old)
- Events
- 200 m · 400 m
Kotaro Hamaguchi is a Japan sprinter, born on August 14, 2001. He competes primarily in the 100m, 200m and 400m.
His personal bests include 11.03 in the 100m, 21.31 in the 200m, 48.11 in the 400m, 3:07.64 in the 4x400m and 34.97 in the 300m. He is currently active on the international athletics circuit, representing Japan.
Personal best · 200 m21.31
2023 season best21.76May 26, 2023 · Yanmar Stadium Nagai, Osaka
Personal best · 400 m48.11
Last competition107th JAAF Athletics Championships - RelaysOct 8, 2023 · 3:07.89
As of Nov 14, 2026: 200 m 21.31, 400 m 48.11, 2023 season best 21.76 (May 26, 2023, Yanmar Stadium Nagai, Osaka (JPN)) · Last competition: 107th JAAF Athletics Championships - Relays, Oct 8, 2023, 3:07.89 · 25 years old
Personal bests
WA points calculator →DisciplineResultAll-time
300mIse 202134.97904 pts–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2023 | 200m | 21.76 | -0.5 | May 26, 2023 | 100th Kansai Inter-University Championships |
| 2023 | 400m | 48.35 | – | Apr 5, 2023 | 71st Osaka Inter-University Track & Field Championships, Nagai Stadium No. 2, Osaka |
| 2023 | 4x400m | 3:07.64 | – | Sep 16, 2023 | 92nd Japan Inter-University Athletics Championships, Prefectural Stadium, Kumagaya |
| 2022 | 200m | 21.31 | +1.0 | Sep 18, 2022 | Nansho Gakuen Stadium, Osaka (JPN) |
| 2022 | 400m | 48.11 | – | Aug 4, 2022 | Nagai Stadium No. 2, Osaka (JPN) |
| 2021 | 200m | 22.01 | +1.5 | Jul 10, 2021 | Prefectural Stadium, Ise (JPN) |
| 2021 | 300m | 34.97 | – | Apr 17, 2021 | Prefectural Stadium, Ise (JPN) |
| 2020 | 100m | 11.03 | +2.0 | Oct 4, 2020 | Try Stadium, Osaka (JPN) |