Risako Iwamoto

JapanJapanActive
Born
May 1, 2005 (21 years old)
Events
100 m hurdles

Risako Iwamoto is a Japan sprinter, born on May 1, 2005. She competes primarily in the 200m, 100mH and 400mH.

Her personal bests include 26.71 in the 200m, 15.25 in the 100mH, 1:03.75 in the 400mH, 48.37 in the 4x100m and 43.20 in the 300m. She ranks 725th all-time in the 100mH for Japan. She is currently active on the international athletics circuit, representing Japan.

Personal best · 100 m hurdles15.25
2026 season best43.20Mar 19, 2026 · Fujisawa
Last competitionThe 10th Nihon University CompetitionMar 28, 2026 · 1:03.75

As of Nov 14, 2026: 100 m hurdles 15.25, 2026 season best 43.20 (Mar 19, 2026, Fujisawa (JPN)) · Last competition: The 10th Nihon University Competition, Mar 28, 2026, 1:03.75 · 21 years old

DisciplineResultAll-time
200mOkinawa 2022Japan 200 m all-time list26.71791 pts–
100mHOkinawa 2022Japan 100 m hurdles all-time list15.25865 pts–
400mHTokyo 2026Japan 400 m hurdles all-time list1:03.75915 pts–
4x100mSagamihara 2024Japan 4 × 100 m all-time list48.37–
300mFujisawa 202643.20799 pts–
300MetresHKagoshima 202343.98–

Progression

SeasonDisciplineResultWindDateCompetitions
2026300m 43.20–Mar 19, 2026Spring Challenge Meet
2026400mH 1:03.75–Mar 28, 2026The 10th Nihon University Competition
2025400mH 1:06.32–Sep 27, 2025The 36th Rookie Athletics Championships and Relay Competition, Gion Stadium, Sagamihara
2024100mH 15.50+2.8Sep 27, 202435th Kanto University Rookies Athletics Championships
20244x100m 48.37–Sep 28, 202435th Kanto University Rookies Athletics Championships
2024400mH 1:05.11–May 11, 2024The 103th Kanto Inter-University Track&Field Championships, National Stadium, Tokyo
2023300MetresH 43.98–Oct 15, 2023National Sports Festival
2023400mH 1:04.89–Aug 3, 2023Inter-High School Championships, Atsubetsu Park Stadium, Sapporo
FAQ

Frequently asked questions

Risako Iwamoto's 100 m hurdles personal best is 15.25, set on Sep 9, 2022 in Prefectural Stadium, Okinawa (JPN).

Risako Iwamoto competes in the 100 m hurdles.

2026 season best: 43.20, set on Mar 19, 2026 in Fujisawa (JPN). Last competition: The 10th Nihon University Competition on Mar 28, 2026, 1:03.75.