Atsuyuki Kodaira

JapanJapanActive
Born
Apr 14, 2004 (22 years old)
Events
Half Marathon · 5 Kilometres Road

Atsuyuki Kodaira is a Japan middle-distance runner, born on April 14, 2004. He competes primarily in the 1500m, 3000m and 5000m.

His personal bests include 3:55.06 in the 1500m, 8:41.17 in the 3000m, 14:26.10 in the 5000m, 29:09.29 in the 10000m and 1:01:54 in the Semi. He is currently active on the international athletics circuit, representing Japan.

Personal best · Half Marathon1:01:54
2026 season best1:01:54Feb 1, 2026 · Marugame
2026 season best
Personal best · 5 Kilometres Road13:58
Last competitionThe 105th Kanto Inter-University Track＆Field ChampionshipsMay 21, 2026 · 29:09.29
The 105th Kanto Inter-University Track＆Field Championships

As of Nov 13, 2026: Half Marathon 1:01:54, 5 Kilometres Road 13:58, 2026 season best 1:01:54 (Feb 1, 2026, Marugame (JPN)) · Last competition: The 105th Kanto Inter-University Track＆Field Championships, May 21, 2026, 29:09.29 · 22 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
1500mHachioji 2021Japan 1500 m all-time list3:55.06914 pts––
3000mTokorozawa 2020Japan 3000 m all-time list8:41.17828 pts––
5000mYokohama 2021Japan 5000 m all-time list14:26.10915 pts––
10000mUtsunomiya 2026Japan 10 000 m all-time list29:09.291,028 pts–#550
SemiMarugame 2026Japan Half Marathon all-time list1:01:541,111 pts–#475
5KilometreTokorozawa 202513:58–#274

Progression

SeasonDisciplineResultWindDateCompetitions
20265Kilometre 14:02–Mar 14, 2026Fukuoka Ohori Road Runnig
202610000m 29:09.29–May 21, 2026The 105th Kanto Inter-University Track＆Field Championships
2026Semi 1:01:54–Feb 1, 202678th Kagawa Marugame International Half Marathon
20255Kilometre 13:58–Sep 28, 2025The Road of Waseda
2025Semi 1:02:28–Nov 16, 2025Ageo City Half Marathon
20245Kilometre 14:35–Sep 29, 2024The 5th Waseda University track and field meet
20245000m 14:45.47–Apr 6, 2024The 57th Tokyo Big 6, Keio Univ. Hiyoshi Athletics Field, Yokohama - Open Event
202410000m 31:19.81–Oct 19, 20246th Waseda University track and field meet Mikio Oda Memorial Athletic Field, Tokorozawa(JPN)
FAQ

Frequently asked questions

Atsuyuki Kodaira's Half Marathon personal best is 1:01:54, set on Feb 1, 2026 in Marugame (JPN).

Atsuyuki Kodaira competes in the Half Marathon and 5 Kilometres Road.

2026 season best: 1:01:54, set on Feb 1, 2026 in Marugame (JPN). Last competition: The 105th Kanto Inter-University Track＆Field Championships on May 21, 2026, 29:09.29.