Naotaro Terunuma

JapanJapanActive
Born
Mar 28, 2009 (17 years old)
Events
400 m

Naotaro Terunuma is a Japan sprinter, born on March 28, 2009. He competes primarily in the 400m and 300m.

His personal bests include 49.89 in the 400m and 35.76 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m49.89
2026 season best50.52Jul 18, 2026
2026 season best
Last competition99th Hokkaido Athletics ChampionshipsJul 18, 2026 · 50.52
99th Hokkaido Athletics Championships

As of Nov 13, 2026: 400 m 49.89, 2026 season best 50.52 (Jul 18, 2026) · Last competition: 99th Hokkaido Athletics Championships, Jul 18, 2026, 50.52 · 17 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
400mObihiro 2025Japan 400 m all-time list49.89865 pts–
300mHakodate 202535.76841 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026400m 50.52–Jul 18, 202699th Hokkaido Athletics Championships
2025300m 35.76–Aug 10, 20252025 National Athletic Meet Hokkaido representative selection meeting
2025400m 49.89–Sep 24, 202541st Hokkaido High School Rookies’ Meeting
FAQ

Frequently asked questions

Naotaro Terunuma's 400 m personal best is 49.89, set on Sep 24, 2025 in Municipal Stadium, Obihiro (JPN).

Naotaro Terunuma competes in the 400 m.

2026 season best: 50.52, set on Jul 18, 2026. Last competition: 99th Hokkaido Athletics Championships on Jul 18, 2026, 50.52.