Koharu Yokoyama

Born
Mar 19, 2008 (18 years old)
Events
400 m

Koharu Yokoyama is a Japan sprinter, born on March 19, 2008. She competes primarily in the 400m, 800m and 300m.

Her personal bests include 57.95 in the 400m, 2:19.71 in the 800m and 41.43 in the 300m. She is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m57.95
2025 season best57.95Jun 13, 2025 · New Aomori Sports Park, Aomori
Last competition2025 All Japan High School sports Track and Field Championships, Prefectural Stadium, HiroshimaJul 25, 2025 · 58.45

As of Nov 14, 2026: 400 m 57.95, 2025 season best 57.95 (Jun 13, 2025, New Aomori Sports Park, Aomori (JPN)) · Last competition: 2025 All Japan High School sports Track and Field Championships, Prefectural Stadium, Hiroshima, Jul 25, 2025, 58.45 · 18 years old

DisciplineResultAll-time
400mAomori 2025Japan 400 m all-time list57.95907 pts–
800mAomori 2024Japan 800 m all-time list2:19.71837 pts–
300mRifu 202541.43885 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2025300m 41.43–Jul 4, 2025Miyagi Athletics Championships
2025400m 57.95–Jun 13, 202580th Tohoku High School Meeting, New Aomori Sports Park, Aomori
2025800m 2:19.89–Jun 15, 202580th Tohoku High School Meeting, New Aomori Sports Park, Aomori
2024400m 58.28–Jun 14, 202479th Tohoku High School Meeting, Azuma Stadium, Fukushima
2024800m 2:19.71–Sep 29, 202429th Tohoku High School Rookies' Championships
FAQ

Frequently asked questions

Koharu Yokoyama's 400 m personal best is 57.95, set on Jun 13, 2025 in New Aomori Sports Park, Aomori (JPN).

Koharu Yokoyama competes in the 400 m.

2025 season best: 57.95, set on Jun 13, 2025 in New Aomori Sports Park, Aomori (JPN). Last competition: 2025 All Japan High School sports Track and Field Championships, Prefectural Stadium, Hiroshima on Jul 25, 2025, 58.45.