Kokona Yamawaki
JapanActive- Born
- Apr 25, 2007 (19 years old)
- Events
- 400 m · 400 m hurdles
Kokona Yamawaki is a Japan sprinter, born on April 25, 2007. She competes primarily in the 100m, 200m and 400m.
Her personal bests include 13.00 in the 100m, 25.83 in the 200m, 56.25 in the 400m, 1:02.88 in the 400mH and 3:51.36 in the 4x400m. She is currently active on the international athletics circuit, representing Japan.
Personal best · 400 m56.25
2026 season best58.78Jun 19, 2026
Personal best · 400 m hurdles1:02.88
Last competition95th Japan Inter-University Athletics ChampionshipsSep 5, 2026 · 61.20
As of Nov 15, 2026: 400 m 56.25, 400 m hurdles 1:02.88, 2026 season best 58.78 (Jun 19, 2026) · Last competition: 95th Japan Inter-University Athletics Championships, Sep 5, 2026, 61.20 · 19 years old
Personal bests
WA points calculator →DisciplineResultAll-time
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 200m | 26.71 | +1.1 | May 16, 2026 | The 103rd Kansai Inter University Track&Field Championships |
| 2026 | 400m | 58.78 | – | Jun 19, 2026 | The 79th West-Japan Inter-Unversity Track＆ Field Championships |
| 2026 | 400mH | 1:04.81 | – | Jun 20, 2026 | The 79th West-Japan Inter-Unversity Track＆ Field Championships |
| 2025 | 100m | 13.00 | +1.1 | Mar 29, 2025 | Day eight , the 34th Nara City Athletics Curcuit, Konoike Athletics Stadium, Nara |
| 2025 | 200m | 25.83 | +1.7 | Jun 29, 2025 | Osaka Athletics Championships |
| 2025 | 400m | 56.25 | – | Jun 12, 2025 | 78th National High School Track and Field Championships Kinki Regional Qualifiers |
| 2025 | 400mH | 1:02.88 | – | Jun 28, 2025 | Osaka Athletics Championships |
| 2024 | 200m | 26.30 | +1.5 | May 25, 2024 | 77th Osaka Inter High School Athletics Championship, Nagai Stadium No. 2, Osaka |