Riria Saito

JapanJapanActive
Born
Dec 20, 2008 (17 years old)
Events
400 m

Riria Saito is a Japan sprinter, born on December 20, 2008. She competes primarily in the 100m, 400m and 400mH.

Her personal bests include 12.86 in the 100m, 60.71 in the 400m and 1:08.63 in the 400mH. She is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m60.71
2026 season best1:05.34Jul 18, 2026
Last competition99th Hokkaido Athletics ChampionshipsJul 18, 2026 · 1:05.34

As of Nov 14, 2026: 400 m 60.71, 2026 season best 1:05.34 (Jul 18, 2026) · Last competition: 99th Hokkaido Athletics Championships, Jul 18, 2026, 1:05.34 · 17 years old

DisciplineResultAll-time
100mHakodate 2025Japan 100 m all-time list12.86*828 pts–
400mObihiro 2025Japan 400 m all-time list60.71814 pts–
400mHObihiro 2025Japan 400 m hurdles all-time list1:08.63785 pts–

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
2026400mH 1:05.34–Jul 18, 202699th Hokkaido Athletics Championships
2025100m 12.86+3.0Aug 9, 20252025 National Athletic Meet Hokkaido representative selection meeting
2025400m 60.71–Sep 24, 202541st Hokkaido High School Rookies’ Meeting
2025400mH 1:08.63–Sep 25, 202541st Hokkaido High School Rookies’ Meeting
FAQ

Frequently asked questions

Riria Saito's 400 m personal best is 60.71, set on Sep 24, 2025 in Municipal Stadium, Obihiro (JPN).

Riria Saito competes in the 400 m.

2026 season best: 1:05.34, set on Jul 18, 2026. Last competition: 99th Hokkaido Athletics Championships on Jul 18, 2026, 1:05.34.