Masaki IGARASHI

JapanJapanActive
Born
Jan 10, 2004 (22 years old)
Events
Half Marathon · 3000 m steeplechase

Masaki IGARASHI is a Japan middle-distance runner, born on January 10, 2004. He competes primarily in the 1500m, 5000m and Semi.

His personal bests include 3:58.96 in the 1500m, 14:21.76 in the 5000m, 1:04:28 in the Semi, 9:15.52 in the 3000mSt and 1:40:18 in the 30Kilometr. He is currently active on the international athletics circuit, representing Japan.

Personal best · Half Marathon1:04:28
2025 season best1:04:28Nov 16, 2025 · Ageo
Personal best · 3000 m steeplechase9:15.52
Last competitionAgeo City Half MarathonNov 16, 2025 · 1:04:28

As of Nov 13, 2026: Half Marathon 1:04:28, 3000 m steeplechase 9:15.52, 2025 season best 1:04:28 (Nov 16, 2025, Ageo (JPN)) · Last competition: Ageo City Half Marathon, Nov 16, 2025, 1:04:28 · 22 years old

DisciplineResultAll-time
1500mTendo 2021Japan 1500 m all-time list3:58.96867 pts–
5000mAbashiri 2024Japan 5000 m all-time list14:21.76929 pts–
SemiAgeo 2025Japan Half Marathon all-time list1:04:281,014 pts–
30KilometrTokyo 20251:40:18–

Progression

SeasonDisciplineResultWindDateCompetitions
2025Semi 1:04:28–Nov 16, 2025Ageo City Half Marathon
202530Kilometr 1:40:18–Feb 16, 202557th The Ohme 30 & 10 km Road Race
20245000m 14:21.76–Jul 14, 2024Summer Distance Challenge
20221500m 4:00.15–Jul 3, 2022NITTAIDAI Athletic Stadium, Yokohama (JPN)
20225000m 14:43.15–Jul 16, 2022Athletics Stadium, Hadano (JPN)
20211500m 3:58.96–Jul 9, 2021ND Soft Stadium, Tendo (JPN)
20213000mSt 9:15.52–Jun 22, 2021Athletic Field, Kitakami (JPN)
20215000m 14:36.06–Dec 5, 2021NITTAIDAI Athletic Stadium, Yokohama (JPN)
FAQ

Frequently asked questions

Masaki IGARASHI's Half Marathon personal best is 1:04:28, set on Nov 16, 2025 in Ageo (JPN).

Masaki IGARASHI competes in the Half Marathon and 3000 m steeplechase.

2025 season best: 1:04:28, set on Nov 16, 2025 in Ageo (JPN). Last competition: Ageo City Half Marathon on Nov 16, 2025, 1:04:28.