Mizuki Obuchi
JapanActive- Born
- Feb 19, 1997 (29 years old)
- Events
- 400 m · 300 Metres
Mizuki Obuchi is a Japan sprinter, born on February 19, 1997. He competes primarily in the 400m, 4x400m and 4x400Metre.
His personal bests include 45.78 in the 400m, 3:06.04 in the 4x400m, 3:24.40 in the 4x400Metre and 33.36 in the 300m. He is currently active on the international athletics circuit, representing Japan.
Personal best · 400 m45.78
2026 season best46.09May 17, 2026 · National Stadium, Tokyo
Personal best · 300 Metres33.36
Last competition3rd SANO SprintOct 3, 2026 · 10.64
As of Oct 28, 2026: 400 m 45.78, 300 Metres 33.36, 2026 season best 46.09 (May 17, 2026, National Stadium, Tokyo (JPN)) · Last competition: 3rd SANO Sprint, Oct 3, 2026, 10.64 · 29 years old
Personal bests
WA points calculator →DisciplineResultAll-time2026
4x400mYokohama 20173:06.04––
4x400MetreHiratsuka 20193:24.40––
300mMaebashi 202233.361,040 pts––
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 100m | 10.64 | +1.0 | Oct 3, 2026 | 3rd SANO Sprint |
| 2026 | 200m | 21.11 | +0.5 | Oct 3, 2026 | 3rd SANO Sprint |
| 2026 | 400m | 46.09 | – | May 17, 2026 | SEIKO Golden Grand Prix |
| 2025 | 300m | 33.78 | – | Oct 3, 2025 | Japan Games, Athletic Stadium, Hikone |
| 2025 | 400m | 46.09 | – | May 11, 2025 | 12th Kinami Michitaka Memorial Athletics Meet, Yanmar Stadium Nagai, Osaka |
| 2024 | 400m | 46.13 | – | Sep 22, 2024 | 72nd Japan Corporate Teams Athletics Championships, Ishin Me-Life Stadium, Yamaguchi |
| 2023 | 400m | 45.95 | – | May 3, 2023 | 38th Shizuoka International Athletics Meet, Prefectural Shizuoka Stadium, Fukuroi |
| 2023 | 4x400Metre | 3:24.52 | – | Jul 1, 2023 | All Star Night Games, Lemon Gas Stadium, Hiratsuka |