Issei Iwasa

Issei Iwasa

JapanJapanActive
Born
Feb 7, 1998 (28 years old)
Events
Half Marathon · Marathon

Issei Iwasa is a Japan long-distance runner, born on February 7, 1998. He competes primarily in the 5000m, 10000m and Semi.

His personal bests include 13:51.28 in the 5000m, 29:01.29 in the 10000m, 1:02:39 in the Semi, 2:14:00 in the Marathon and 48:43 in the 10MilesRoa. He is currently active on the international athletics circuit, representing Japan.

Personal best · Half Marathon1:02:39
2026 season best1:07:58Jan 25, 2026 · Osaka Half Marathon Course, Osaka
2026 season best
Personal best · Marathon2:14:00
Last competitionOsaka Half MarathonJan 25, 2026 · 1:07:58
Osaka Half Marathon

As of Nov 7, 2026: Half Marathon 1:02:39, Marathon 2:14:00, 2026 season best 1:07:58 (Jan 25, 2026, Osaka Half Marathon Course, Osaka (JPN)) · Last competition: Osaka Half Marathon, Jan 25, 2026, 1:07:58 · 28 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
5000mFukagawa 2023Japan 5000 m all-time list13:51.281,029 pts–
10000mKumagaya 2020Japan 10 000 m all-time list29:01.291,040 pts–
SemiTachikawa 2019Japan Half Marathon all-time list1:02:391,082 pts–
MarathonTokyo 2018Japan Marathon all-time list2:14:001,059 pts–
10MilesRoaKumamoto 202448:43–
20KilometrTachikawa 201759:44–

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2026Semi 1:07:58–Jan 25, 2026Osaka Half Marathon
20255000m 14:34.68–Jun 7, 202569th Kansai Inter-Corporate Track & Field Championships
20245000m 14:22.37–Jun 1, 202468th Kansai Inter-Corporate Track & Field Championships, Yanmar Stadium Nagai, Osaka
202410MilesRoa 48:43–Dec 1, 2024Kumamoto Kosa 10 mile Road Race
20235000m 13:51.28–Jul 5, 2023Hokuren Distance Challenge - Fukagawa
202310000m 30:00.74–May 12, 202367th Kansai Inter-Corporate Track & Field Championships
2023Semi 1:04:44–Jan 29, 20232023 Osaka Half Marathon, Osaka Half Marathon Course, Osaka
20215000m 15:22.16–May 15, 2021Yanmar Stadium Nagai, Osaka (JPN)
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FAQ

Frequently asked questions

Issei Iwasa's Half Marathon personal best is 1:02:39, set on Mar 10, 2019 in Tachikawa (JPN).

Issei Iwasa competes in the Half Marathon and Marathon.

2026 season best: 1:07:58, set on Jan 25, 2026 in Osaka Half Marathon Course, Osaka (JPN). Last competition: Osaka Half Marathon on Jan 25, 2026, 1:07:58.