Kohaku Mochizuki

JapanJapanActive
Born
Jun 20, 2004 (22 years old)
Events
3000 m steeplechase · Marathon

Kohaku Mochizuki is a Japan long-distance runner, born on June 20, 2004. She competes primarily in the 3000m, 5000m and Semi.

Her personal bests include 10:28.40 in the 3000m, 18:27.16 in the 5000m, 1:25:49 in the Semi, 3:00:58 in the Marathon and 11:37.64 in the 3000mSt. She is currently active on the international athletics circuit, representing Japan.

Personal best · 3000 m steeplechase11:37.64
2026 season best18:32.72Mar 21, 2026 · Nagai Stadium No. 2, Osaka
2026 season best
Personal best · Marathon3:00:58
Last competition74th Osaka Inter University Track&Field Championships and 92nd Hyogo Inter University Track&FieldApr 3, 2026 · 18:44.78
74th Osaka Inter University Track&Field Championships and 92nd Hyogo Inter University Track&Field

As of Nov 14, 2026: 3000 m steeplechase 11:37.64, Marathon 3:00:58, 2026 season best 18:32.72 (Mar 21, 2026, Nagai Stadium No. 2, Osaka (JPN)) · Last competition: 74th Osaka Inter University Track&Field Championships and 92nd Hyogo Inter University Track&Field, Apr 3, 2026, 18:44.78 · 22 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
3000mKobe 2021Japan 3000 m all-time list10:28.40830 pts–
5000mOsaka 2025Japan 5000 m all-time list18:27.16796 pts–
SemiOsaka 2024Japan Half Marathon all-time list1:25:49828 pts–
MarathonNara 2025Japan Marathon all-time list3:00:58848 pts–
3000mStNara 2021Japan 3000 m steeplechase all-time list11:37.64873 pts–
10KilometrOkayama 202338:03–

Progression

SeasonDisciplineResultWindDateCompetitions
20265000m 18:32.72–Mar 21, 2026the second ICAAK track and field game
20255000m 18:27.16–Apr 2, 202573rd Osaka Inter University Track&Field Championships and 91st Hyogo Inter University Track&Field, Yanmar Stadium Nagai, Osaka
2025Marathon 3:00:58–Dec 14, 2025Nara Marathon, Nara
2024Semi 1:25:49–Jan 28, 2024Osaka Half Marathon, Osaka
202310Kilometr 38:03–Dec 17, 2023The 42nd SANYO Ladies Road Race
20223000m 10:35.61–Apr 16, 2022Sports Park Stadium, Kobe (JPN)
20213000m 10:28.40–Oct 10, 2021Universiade Commemorative Stadium, Kobe (JPN)
20213000mSt 11:37.64–Aug 29, 2021Konoike Athletics Stadium, Nara (JPN)
FAQ

Frequently asked questions

Kohaku Mochizuki's 3000 m steeplechase personal best is 11:37.64, set on Aug 29, 2021 in Konoike Athletics Stadium, Nara (JPN).

Kohaku Mochizuki competes in the 3000 m steeplechase and Marathon.

2026 season best: 18:32.72, set on Mar 21, 2026 in Nagai Stadium No. 2, Osaka (JPN). Last competition: 74th Osaka Inter University Track&Field Championships and 92nd Hyogo Inter University Track&Field on Apr 3, 2026, 18:44.78.