Kosei Sasagawa
- Born
- Apr 21, 2004 (22 years old)
- Events
- 5000 m · 5 Kilometres Road
Kosei Sasagawa is a Japan middle-distance runner, born on April 21, 2004. He competes primarily in the 1500m, 5000m and Semi.
His personal bests include 3:59.74 in the 1500m, 14:11.68 in the 5000m, 1:08:41 in the Semi and 14:40 in the 5Kilometre. He is currently active on the international athletics circuit, representing Japan.
Personal best · 5000 m14:11.68
2025 season best14:40Apr 13, 2025 · Meijijingu Gaien area, Tokyo
Personal best · 5 Kilometres Road14:40
Last competitionAdidas Tokyo City RunApr 13, 2025 · 14:40
As of Nov 13, 2026: 5000 m 14:11.68, 5 Kilometres Road 14:40, 2025 season best 14:40 (Apr 13, 2025, Meijijingu Gaien area, Tokyo (JPN)) · Last competition: Adidas Tokyo City Run, Apr 13, 2025, 14:40 · 22 years old
Personal bests
WA points calculator →DisciplineResultAll-time
5KilometreTokyo 202514:40–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2025 | 5Kilometre | 14:40 | – | Apr 13, 2025 | Adidas Tokyo City Run |
| 2024 | Semi | 1:08:41 | – | Mar 10, 2024 | 27th All Japan University Men's Half Marathon Championship |
| 2023 | 5Kilometre | 14:50 | – | Mar 26, 2023 | Adidas Tokyo City Race |
| 2022 | 1500m | 3:59.74 | – | Jul 15, 2022 | Azuma Stadium, Fukushima (JPN) |
| 2022 | 5000m | 14:11.68 | – | Apr 24, 2022 | NITTAIDAI Athletic Stadium, Yokohama (JPN) |
| 2021 | 5000m | 14:17.06 | – | Dec 5, 2021 | NITTAIDAI Athletic Stadium, Yokohama (JPN) |