Koki Kajiwara
JapanActive- Born
- Sep 5, 2007 (19 years old)
- Events
- 100 m
Koki Kajiwara is a Japan sprinter, born on September 5, 2007. He competes primarily in the 100m, 400mH and 300m.
His personal bests include 11.30 in the 100m, 54.68 in the 400mH, 35.94 in the 300m and 37.88 in the 300MetresH. He ranks 4684th all-time in the 100m for Japan. He is currently active on the international athletics circuit, representing Japan.
Personal best · 100 m11.30
2026 season best56.84Apr 26, 2026 · Municipal Stadium, Oita
Last competitionThe 80th Oita Prefectural Championships, Municipal Stadium, OitaApr 26, 2026 · 58.04
As of Nov 13, 2026: 100 m 11.30, 2026 season best 56.84 (Apr 26, 2026, Municipal Stadium, Oita (JPN)) · Last competition: The 80th Oita Prefectural Championships, Municipal Stadium, Oita, Apr 26, 2026, 58.04 · 19 years old
Personal bests
WA points calculator →DisciplineResultAll-time
300mOita 202535.94827 pts–
300MetresHOita 202537.88–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 400mH | 56.84 | – | Apr 26, 2026 | The 80th Oita Prefectural Championships, Municipal Stadium, Oita |
| 2025 | 300m | 35.94 | – | Aug 23, 2025 | The 80th Kyusyu Athletics Championships, Showa Denko Stadium, Oita |
| 2025 | 300MetresH | 37.88 | – | Aug 2, 2025 | 2025 National Sports Festival Oita Challenge Meet |
| 2025 | 400mH | 54.68 | – | Jun 14, 2025 | The 78th National High School Track and Field Championships Kitakyushu Regional Qualifiers |
| 2024 | 100m | 11.30 | +1.9 | Aug 23, 2024 | 79th Kyushu Athletics Championships, Prefectural Stadium, Okinawa |
| 2024 | 400mH | 57.30 | – | Oct 5, 2024 | The 42nd All Kyushu High School Rookies |