Riko Iijima

Riko Iijima

JapanJapanActive
Born
Apr 27, 2000 (26 years old)
Events
Half Marathon · 10 000 m

Riko Iijima is a Japan middle-distance runner, born on April 27, 2000. She competes primarily in the 1500m, 3000m and 5000m.

Her personal bests include 4:25.71 in the 1500m, 9:16.43 in the 3000m, 15:47.74 in the 5000m, 32:48.79 in the 10000m and 1:11:14 in the Semi. She is currently active on the international athletics circuit, representing Japan.

Personal best · Half Marathon1:11:14
2026 season best1:13:46Feb 8, 2026 · Ishin Me-Life Stadium, Yamaguchi
Personal best · 10 000 m32:48.79
Last competition74th Japan Corporate Teams Athletics Championships, Takebishi Stadium, KyotoSep 11, 2026 · 16:02.16

As of Nov 13, 2026: Half Marathon 1:11:14, 10 000 m 32:48.79, 2026 season best 1:13:46 (Feb 8, 2026, Ishin Me-Life Stadium, Yamaguchi (JPN)) · Last competition: 74th Japan Corporate Teams Athletics Championships, Takebishi Stadium, Kyoto, Sep 11, 2026, 16:02.16 · 26 years old

DisciplineResultAll-time2026
1500mTendo 2026Japan 1500 m all-time list4:25.711,008 pts––
3000mYokohama 2023Japan 3000 m all-time list9:16.431,052 pts–#269
5000mOsaka 2023Japan 5000 m all-time list15:47.741,073 pts–#423
10000mOsaka 2024Japan 10 000 m all-time list32:48.791,097 pts–#135
SemiYamaguchi 2025Japan Half Marathon all-time list1:11:141,105 pts–#632
10KilometrKaratsu 201834:19––

Progression

SeasonDisciplineResultWindDateCompetitions
20261500m 4:25.71–May 15, 202668th East Japan Corporate Athletics Championships
20263000m 9:20.59–Jul 11, 2026HOKUREN Distance Challenge in KITAMI
20265000m 15:53.62–Jul 18, 2026HOKUREN Distance Challenge in SHIBETSU
202610000m 32:42.50–Jul 8, 2026HOKUREN Distance Challenge in ABASHIRI
2026Semi 1:13:46–Feb 8, 202654th Yamaguchi All-Corporate Half Marathon Championships
20253000m 9:23.69–Jun 14, 2025HOKUREN Distance Challenge 2025 in SHIBETSU
20255000m 15:52.75–Apr 29, 202559th Oda Mikio Memorial, Municipal Stadium, Hiroshima
2025Semi 1:11:14–Feb 9, 202553rd Yamaguchi All-Corporate Half Marathon Championships, Ishin Me-Life Stadium, Yamaguchi
FAQ

Frequently asked questions

Riko Iijima's Half Marathon personal best is 1:11:14, set on Feb 9, 2025 in Ishin Me-Life Stadium, Yamaguchi (JPN).

Riko Iijima competes in the Half Marathon and 10 000 m.

2026 season best: 1:13:46, set on Feb 8, 2026 in Ishin Me-Life Stadium, Yamaguchi (JPN). Last competition: 74th Japan Corporate Teams Athletics Championships, Takebishi Stadium, Kyoto on Sep 11, 2026, 16:02.16.