Saki Iwai

Saki Iwai

JapanJapanActive
Born
Nov 26, 2002 (23 years old)
Events
Half Marathon · 10 000 m

Saki Iwai is a Japan middle-distance runner, born on November 26, 2002. She competes primarily in the 1500m, 3000m and 5000m.

Her personal bests include 4:44.95 in the 1500m, 10:01.68 in the 3000m, 16:41.09 in the 5000m, 34:59.52 in the 10000m and 1:15:45 in the Semi. She is currently active on the international athletics circuit, representing Japan.

Personal best · Half Marathon1:15:45
2026 season best1:16:04Feb 8, 2026 · Ishin Me-Life Stadium, Yamaguchi
Personal best · 10 000 m34:59.52
Last competition54th Yamaguchi All-Corporate Half Marathon ChampionshipsFeb 8, 2026 · 1:16:04

As of Nov 14, 2026: Half Marathon 1:15:45, 10 000 m 34:59.52, 2026 season best 1:16:04 (Feb 8, 2026, Ishin Me-Life Stadium, Yamaguchi (JPN)) · Last competition: 54th Yamaguchi All-Corporate Half Marathon Championships, Feb 8, 2026, 1:16:04 · 23 years old

DisciplineResultAll-time2026
1500mChiba 2020Japan 1500 m all-time list4:44.95872 pts––
3000mYokohama 2022Japan 3000 m all-time list10:01.68909 pts––
5000mOsaka 2025Japan 5000 m all-time list16:41.09976 pts––
10000mKitakyushu 2025Japan 10 000 m all-time list34:59.52987 pts––
SemiOkayama 2025Japan Half Marathon all-time list1:15:451,015 pts–#958

Progression

SeasonDisciplineResultWindDateCompetitions
2026Semi 1:16:04–Feb 8, 202654th Yamaguchi All-Corporate Half Marathon Championships
20255000m 16:41.09–Dec 6, 2025EDION Distance Challenge in Osaka 2025
202510000m 34:59.52–May 17, 202568th Kyushu Corporate Athletics Championships, Honjo Athletic Stadium, Kitakyushu
2025Semi 1:15:45–Dec 21, 2025The 44th SANYO Ladies Road Race
202310000m 35:41.55–May 20, 202365th East Japan Corporate Athletics Championships, Kanseki Stadium, Utsunomiya
2023Semi 1:18:02–Oct 15, 2023Tokyo Legacy Half Marathon
20223000m 10:01.68–Jul 3, 2022NITTAIDAI Athletic Stadium, Yokohama (JPN)
20225000m 17:03.74–Dec 4, 2022Tokai University Stadium, Hiratsuka (JPN)
FAQ

Frequently asked questions

Saki Iwai's Half Marathon personal best is 1:15:45, set on Dec 21, 2025 in Prefectural Stadium, Okayama (JPN).

Saki Iwai competes in the Half Marathon and 10 000 m.

2026 season best: 1:16:04, set on Feb 8, 2026 in Ishin Me-Life Stadium, Yamaguchi (JPN). Last competition: 54th Yamaguchi All-Corporate Half Marathon Championships on Feb 8, 2026, 1:16:04.