
Koyuki Nagaishi
- Born
- Nov 19, 2003 (22 years old)
- Events
- 100 m · 200 m
Koyuki Nagaishi is a Japan sprinter, born on November 19, 2003. She competes primarily in the 100m, 200m and 4x100m.
Her personal bests include 11.58 in the 100m, 23.74 in the 200m and 44.47 in the 4x100m. She is currently active on the international athletics circuit, representing Japan.
Personal best · 100 m11.58
2026 season best11.58Jun 12, 2026 · Municipal Mizuho Stadium, Nagoya
Personal best · 200 m23.74
Last competition95th Japan Inter-University Athletics ChampionshipsSep 5, 2026 · 11.74
As of Nov 8, 2026: 100 m 11.58, 200 m 23.74, 2026 season best 11.58 (Jun 12, 2026, Municipal Mizuho Stadium, Nagoya (JPN)) · Last competition: 95th Japan Inter-University Athletics Championships, Sep 5, 2026, 11.74 · 22 years old
Personal bests
WA points calculator →DisciplineResultAll-time2026
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 100m | 11.58 | +0.6 | Jun 12, 2026 | Japanese Championships |
| 2026 | 200m | 23.74 | +0.5 | May 3, 2026 | 41st Shizuoka International Athletics Meet |
| 2026 | 4x100m | 44.77 | – | May 16, 2026 | The 103rd Kansai Inter University Track&Field Championships |
| 2025 | 100m | 11.59 | +2.4 | Apr 26, 2025 | All Japan University Track & Field Challenge, Tokai University Stadium, Hiratsuka |
| 2025 | 200m | 23.91 | +0.1 | Jun 8, 2025 | 94th Japan Inter-University Athletics Championships |
| 2025 | 4x100m | 44.47 | – | Jun 5, 2025 | 94th Japan Inter-University Athletics Championships |
| 2024 | 100m | 11.85 | +2.3 | Jun 15, 2024 | All Japan University Track & Field Challenge, Lemon Gas Stadium, Hiratsuka |
| 2024 | 200m | 24.18 | +2.5 | May 25, 2024 | The 101st Kansai Inter University Track&Field Championships, Takebishi Stadium, Kyoto |