Masashi Seto

Born
Sep 5, 2004 (22 years old)
Events
1500 m

Masashi Seto is a Japan middle-distance runner, born on September 5, 2004. He competes primarily in the 1500m, 3000m and 5000m.

His personal bests include 3:49.86 in the 1500m, 8:32.64 in the 3000m, 14:31.04 in the 5000m, 1:07:57 in the Semi and 14:33 in the 5Kilometre. He is currently active on the international athletics circuit, representing Japan.

Personal best · 1500 m3:49.86
2024 season best14:33Feb 23, 2024 · Tokyo
Last competition27th All Japan University Men's Half Marathon ChampionshipMar 10, 2024 · 1:07:57

As of Nov 13, 2026: 1500 m 3:49.86, 2024 season best 14:33 (Feb 23, 2024, Tokyo (JPN)) · Last competition: 27th All Japan University Men's Half Marathon Championship, Mar 10, 2024, 1:07:57 · 22 years old

DisciplineResultAll-time
1500mYokohama 2022Japan 1500 m all-time list3:49.86979 pts–
3000mSabae 2022Japan 3000 m all-time list8:32.64873 pts–
5000mYokohama 2022Japan 5000 m all-time list14:31.04899 pts–
SemiTachikawa 2024Japan Half Marathon all-time list1:07:57888 pts–
5KilometreTokyo 202414:33–

Progression

SeasonDisciplineResultWindDateCompetitions
20245Kilometre 14:33–Feb 23, 2024ADIZERO 5K Special Race
2024Semi 1:07:57–Mar 10, 202427th All Japan University Men's Half Marathon Championship
20231500m 4:01.08–Apr 9, 202359th Four University Inter-College Track and Field Tournament, Gion Stadium, Sagamihara
20221500m 3:49.86–Jun 4, 2022NITTAIDAI Athletic Stadium, Yokohama (JPN)
20223000m 8:32.64–Sep 4, 2022Higashi Park Stadiu, Sabae (JPN)
20225000m 14:31.04–Oct 2, 2022NITTAIDAI Athletic Stadium, Yokohama (JPN)
20213000m 8:44.51–Jul 23, 2021Shinshu SkyPark Athletic Field, Matsumoto (JPN)
20215000m 14:58.34–Nov 14, 2021NITTAIDAI Athletic Stadium, Yokohama (JPN)
FAQ

Frequently asked questions

Masashi Seto's 1500 m personal best is 3:49.86, set on Jun 4, 2022 in NITTAIDAI Athletic Stadium, Yokohama (JPN).

Masashi Seto competes in the 1500 m.

2024 season best: 14:33, set on Feb 23, 2024 in Tokyo (JPN). Last competition: 27th All Japan University Men's Half Marathon Championship on Mar 10, 2024, 1:07:57.