Ji-sun Chu
- Born
- Jul 1, 2006 (20 years old)
- Events
- 400 m
Ji-sun Chu is a South Korea sprinter, born on July 1, 2006. She competes primarily in the 200m and 400m.
Her personal bests include 25.74 in the 200m and 58.01 in the 400m. She ranks 246th all-time in the 400m for South Korea. She is currently active on the international athletics circuit, representing South Korea.
Personal best · 400 m58.01
2023 season best59.04Apr 27, 2023 · Tashkent
Last competition5th Asian U18 Athletics ChampionshipsApr 27, 2023 · 59.04
As of Nov 7, 2026: 400 m 58.01, 2023 season best 59.04 (Apr 27, 2023, Tashkent (UZB)) · Last competition: 5th Asian U18 Athletics Championships, Apr 27, 2023, 59.04 · 20 years old
Personal bests
WA points calculator →DisciplineResultAll-time
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2023 | 400m | 59.04 | – | Apr 27, 2023 | 5th Asian U18 Athletics Championships |
| 2022 | 200m | 25.74 | +0.2 | Aug 14, 2022 | Boeun (KOR) |
| 2022 | 400m | 58.01 | – | Aug 12, 2022 | Boeun (KOR) |
| 2021 | 400m | 59.39 | – | Jun 5, 2021 | Yecheon (KOR) |