Koki Nakazaki
- Born
- May 14, 2002 (24 years old)
- Events
- 400 m · 300 Metres
Koki Nakazaki is a Japan sprinter, born on May 14, 2002. He competes primarily in the 400m, 4x100m and 4x400m.
His personal bests include 50.39 in the 400m, 42.05 in the 4x100m, 3:16.65 in the 4x400m and 36.60 in the 300m. He is currently active on the international athletics circuit, representing Japan.
Personal best · 400 m50.39
2025 season best36.60Jul 19, 2025 · Komazawa Olympic Park Athletic Stadium, Tokyo
Personal best · 300 Metres36.60
Last competitionTokyo Qualification for the National Sports Festival, Komazawa Olympic Park Athletic Stadium, Tokyo - Open EventJul 19, 2025 · 36.60
As of Nov 13, 2026: 400 m 50.39, 300 Metres 36.60, 2025 season best 36.60 (Jul 19, 2025, Komazawa Olympic Park Athletic Stadium, Tokyo (JPN)) · Last competition: Tokyo Qualification for the National Sports Festival, Komazawa Olympic Park Athletic Stadium, Tokyo - Open Event, Jul 19, 2025, 36.60 · 24 years old
Personal bests
WA points calculator →DisciplineResultAll-time
300mTokyo 202536.60776 pts–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2025 | 300m | 36.60 | – | Jul 19, 2025 | Tokyo Qualification for the National Sports Festival, Komazawa Olympic Park Athletic Stadium, Tokyo - Open Event |
| 2024 | 400m | 50.39 | – | Mar 16, 2024 | 2024 Spring Challenge Meet, National Stadium, Tokyo |
| 2024 | 4x400m | 3:17.01 | – | May 11, 2024 | The 103th Kanto Inter-University Track＆Field Championships, National Stadium, Tokyo |
| 2023 | 4x100m | 42.05 | – | May 11, 2023 | 102nd Kanto Inter-University Track & Field Championships, Gion Stadium, Sagamihara - 2nd Tier |
| 2023 | 4x400m | 3:16.65 | – | Sep 23, 2023 | 34th Kanto University Rookies Athletics Championships, Gion Stadium, Sagamihara |