Rio Kasahara

JapanJapan
Born
Apr 23, 2003 (23 years old)
Events
Hammer Throw

Rio Kasahara is a Japan thrower, born on April 23, 2003. She competes primarily in the SP and HT.

Her personal bests include 11.29 in the SP and 55.65 in the HT. She is currently active on the international athletics circuit, representing Japan.

Personal best · Hammer Throw55.65
2025 season best54.86Mar 9, 2025 · Prefectural Stadium, Okinawa
2025 season best
Last competition94th Japan Inter-University Athletics ChampionshipsJun 6, 2025 · 54.20
94th Japan Inter-University Athletics Championships

As of Nov 6, 2026: Hammer Throw 55.65, 2025 season best 54.86 (Mar 9, 2025, Prefectural Stadium, Okinawa (JPN)) · Last competition: 94th Japan Inter-University Athletics Championships, Jun 6, 2025, 54.20 · 23 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
SPKumagaya 2021Japan Shot Put all-time list11.29666 pts–
HTSagamihara 2023Japan Hammer Throw all-time list55.65862 pts–

Progression

Compare me
SeasonDisciplineResultWindDateCompetitions
2025HT 54.86–Mar 9, 202529th Spring Record Meeting
2024HT 52.89–May 10, 2024The 103th Kanto Inter-University Track＆Field Championships, National Stadium, Tokyo
2023HT 55.65–May 12, 2023102nd Kanto Inter-University Track & Field Championships, Gion Stadium, Sagamihara - 2nd Tier
2022SP 10.60–Apr 10, 2022Gion Stadium, Sagamihara (JPN)
2022HT 52.30–Jun 10, 2022Yanmar Stadium Nagai, Osaka (JPN)
2021SP 11.29–Jun 26, 2021Prefectural Stadium, Kumagaya (JPN)
2021HT 49.95–Nov 14, 2021Prefectural Stadium, Kumagaya (JPN)
2020HT 44.39–Nov 14, 2020Prefectural Stadium, Kumagaya (JPN)
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FAQ

Frequently asked questions

Rio Kasahara's Hammer Throw personal best is 55.65, set on May 12, 2023 in Gion Stadium, Sagamihara (JPN).

Rio Kasahara competes in the Hammer Throw.

2025 season best: 54.86, set on Mar 9, 2025 in Prefectural Stadium, Okinawa (JPN). Last competition: 94th Japan Inter-University Athletics Championships on Jun 6, 2025, 54.20.