Kokoro YONEYAMA
JapanActive- Born
- Jun 20, 2010 (16 years old)
Kokoro YONEYAMA is a Japan sprinter, born on June 20, 2010. She competes primarily in the 400m.
Her personal bests include 55.58 in the 400m. She is currently active on the international athletics circuit, representing Japan.
2026 season best55.04Oct 3, 2026 · Denka Big Swan Stadium, Niigata
Last competitionJapanese U20 Championships, Kusanagi Athletic Stadium, ShizuokaOct 3, 2026 · 55.04
As of Nov 14, 2026: 2026 season best 55.04 (Oct 3, 2026, Denka Big Swan Stadium, Niigata (JPN)) · Last competition: Japanese U20 Championships, Kusanagi Athletic Stadium, Shizuoka, Oct 3, 2026, 55.04 · 16 years old
Personal bests
WA points calculator →DisciplineResultAll-time
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 400m | 55.04 | – | Oct 3, 2026 | Japanese U20 Championships, Kusanagi Athletic Stadium, Shizuoka |