Ayato Kosako

JapanJapanActive
Born
Dec 19, 2005 (20 years old)
Events
20 km race walk · 10,000 Metres Short Track

Ayato Kosako is a Japan race walker, born on December 19, 2005. He competes primarily in the 20kmW, 10Kilometr and 5000m-short-track.

His personal bests include 1:25:32 in the 20kmW, 43:09 in the 10Kilometr, 21:31.27 in the 5000m-short-track, 41:34.57 in the 10,000Metr and 1:34:25 in the HalfMarath. He is currently active on the international athletics circuit, representing Japan.

Personal best · 20 km race walk1:25:32
2026 season best43:39.70Apr 5, 2026 · Oi Stadium, Tokyo
2026 season best
Personal best · 10,000 Metres Short Track41:34.57
Last competitionAll Japan University Track & Field ChallengeApr 24, 2026 · DQ
All Japan University Track & Field Challenge

As of Oct 29, 2026: 20 km race walk 1:25:32, 10,000 Metres Short Track 41:34.57, 2026 season best 43:39.70 (Apr 5, 2026, Oi Stadium, Tokyo (JPN)) · Last competition: All Japan University Track & Field Challenge, Apr 24, 2026, DQ · 20 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
20kmWTokyo 20251:25:321,074 pts––
10KilometrNomi 202443:09––
5000m-short-trackSapporo 202321:31.2764 pts––
10,000MetrTokyo 202541:34.57–#142
HalfMarathKobe 20261:34:25–#333

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
202610,000Metr 43:39.70–Apr 5, 2026The 10th Tokyo Gakugei University Race Walking Meeting & The 1st School Team Championships , Middle
2026HalfMarath 1:34:25–Feb 15, 2026Japanese Half Marathon Race Walking Championships
202510,000Metr 41:34.57–Apr 12, 2025The University of Tokyo 6th Race Walking Challenge Games
202510Kilometr 41:34.57–Apr 12, 2025The University of Tokyo 6th Race Walking Challenge Games
202520kmW 1:25:32–Jan 1, 2025New Year Race Walk in Tokyo 2025, Tokyo
202410Kilometr 43:09–Mar 17, 202448th All Japan Race Walking, Nomi
202410,000Metr 45:07.21–Sep 28, 202435th Kanto University Rookies Athletics Championships
202420kmW 1:26:13–Oct 27, 202461st All Japan Race Walking
Compare me with Ayato Kosako
FAQ

Frequently asked questions

Ayato Kosako's 20 km race walk personal best is 1:25:32, set on Jan 1, 2025 in Tokyo (JPN).

Ayato Kosako competes in the 20 km race walk and 10,000 Metres Short Track.

2026 season best: 43:39.70, set on Apr 5, 2026 in Oi Stadium, Tokyo (JPN). Last competition: All Japan University Track & Field Challenge on Apr 24, 2026, DQ.