Ryouga Koiwai
- Born
- Jun 6, 2007 (19 years old)
- Events
- 10 Kilometres Road
Ryouga Koiwai is a Japan sprinter, born on June 6, 2007. He competes primarily in the 10Kilometr and 5000m-short-track.
His personal bests include 44:26 in the 10Kilometr and 21:11.13 in the 5000m-short-track. He is currently active on the international athletics circuit, representing Japan.
Personal best · 10 Kilometres Road44:26
2025 season best44:26Jan 1, 2025 · Tokyo
Last competition2025 All Japan High School sports Track and Field Championships, Prefectural Stadium, HiroshimaJul 26, 2025 · 21:11.13
As of Nov 13, 2026: 10 Kilometres Road 44:26, 2025 season best 44:26 (Jan 1, 2025, Tokyo (JPN)) · Last competition: 2025 All Japan High School sports Track and Field Championships, Prefectural Stadium, Hiroshima, Jul 26, 2025, 21:11.13 · 19 years old
Personal bests
WA points calculator →DisciplineResultAll-time
10KilometrTokyo 202544:26–
5000m-short-trackHiroshima 202521:11.1383 pts–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2025 | 5000m-short-track | 21:11.13 | – | Jul 26, 2025 | 2025 All Japan High School sports Track and Field Championships, Prefectural Stadium, Hiroshima |
| 2025 | 20kmW | 22:06.41 | – | Apr 12, 2025 | The University of Tokyo 6th Race Walking Challenge Games |
| 2025 | 10Kilometr | 44:26 | – | Jan 1, 2025 | New Year Race Walk in Tokyo 2025, Tokyo |
| 2024 | 20kmW | 21:25.90 | – | Oct 19, 2024 | 28th Kanto High School Rookies' Championships |
| 2024 | 5000m-short-track | 21:25.90 | – | Oct 19, 2024 | 28th Kanto High School Rookies' Championships |
| 2024 | 10Kilometr | 45:40 | – | Jan 1, 2024 | 72nd New Year Race Walk in Tokyo 2024 |
| 2023 | 20kmW | 23:11.35 | – | Oct 22, 2023 | 27th Kanto High School Rookies' Championships |
| 2023 | 5000m-short-track | 23:11.35 | – | Oct 21, 2023 | 27th Kanto High School Rookies' Championships |