Rio Masui
JapanActive- Born
- Nov 8, 2007 (19 years old)
- Events
- Discus Throw
Rio Masui is a Japan thrower, born on November 8, 2007. She competes primarily in the SP and DT.
Her personal bests include 11.84 in the SP and 46.53 in the DT. She ranks 363rd all-time in the DT for Japan. She is currently active on the international athletics circuit, representing Japan.
Personal best · Discus Throw46.53
2026 season best46.53Apr 26, 2026 · Lemon Gas Stadium, Hiratsuka
Last competitionJapanese ChampionshipsJun 12, 2026 · 45.46
As of Nov 8, 2026: Discus Throw 46.53, 2026 season best 46.53 (Apr 26, 2026, Lemon Gas Stadium, Hiratsuka (JPN)) · Last competition: Japanese Championships, Jun 12, 2026, 45.46 · 19 years old
Personal bests
WA points calculator →DisciplineResultAll-time2026
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | DT | 46.53 | – | Apr 26, 2026 | All Japan University Track & Field Challenge |
| 2025 | SP | 11.63 | – | Jul 26, 2025 | 2025 All Japan High School sports Track and Field Championships, Prefectural Stadium, Hiroshima |
| 2025 | DT | 44.25 | – | Sep 28, 2025 | Japanese U20 Championships, Kusanagi Athletic Stadium, Shizuoka |
| 2024 | SP | 11.84 | – | Jun 17, 2024 | Kita Kanto Highschool Meeting/Minami Kanto Highschool Meeting, Komazawa Olympic Park Athletic Stadium, Tokyo - South Kanto |
| 2024 | DT | 41.65 | – | Jul 30, 2024 | 2024 Inter-High School Championships |