Rion Shirai

JapanJapan
Born
Mar 8, 2006 (20 years old)
Events
400 m · 300 Metres

Rion Shirai is a Japan sprinter, born on March 8, 2006. She competes primarily in the 100m, 200m and 400m.

Her personal bests include 12.96 in the 100m, 26.76 in the 200m, 59.60 in the 400m, 48.00 in the 4x100m and 3:51.73 in the 4x400m. She is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m59.60
2023 season best59.60Aug 11, 2023 · Hakatanomori Athletic Stadium, Fukuoka
2023 season best
Personal best · 300 Metres42.67
Last competition78th Kyushu Athletics Championships, Sunrise Park, SagaAug 18, 2023 · 48.14
78th Kyushu Athletics Championships, Sunrise Park, Saga

As of Nov 14, 2026: 400 m 59.60, 300 Metres 42.67, 2023 season best 59.60 (Aug 11, 2023, Hakatanomori Athletic Stadium, Fukuoka (JPN)) · Last competition: 78th Kyushu Athletics Championships, Sunrise Park, Saga, Aug 18, 2023, 48.14 · 20 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
100mFukuoka 2022Japan 100 m all-time list12.96810 pts–
200mKitakyushu 2022Japan 200 m all-time list26.76*787 pts–
400mFukuoka 2023Japan 400 m all-time list59.60851 pts–
4x100mFukuoka 2023Japan 4 × 100 m all-time list48.00–
4x400mFukuoka 2023Japan 4 × 400 m all-time list3:51.73–
300mFukuoka 202142.67825 pts–

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
20234x100m 48.00–May 4, 2023Fukuoka Athletics Championships, Hakatanomori Athletic Stadium, Fukuoka
2023400m 59.60–Aug 11, 2023Summer Record Meeting
20234x400m 3:51.73–Jun 17, 202376th Kita Kyushu High School Athletics Championships
2022100m 12.96+0.1Aug 13, 2022Hakatanomori Athletic Stadium, Fukuoka (JPN)
2022200m 26.76+2.6Apr 3, 2022Municipal Sayagatani Stadium, Kitakyushu (JPN)
2022300m 42.89–Aug 14, 2022Hakatanomori Athletic Stadium, Fukuoka (JPN)
2021100m 13.14-0.7Nov 3, 2021Hakatanomori Athletic Stadium, Fukuoka (JPN)
2021300m 42.67–Nov 3, 2021Hakatanomori Athletic Stadium, Fukuoka (JPN)
FAQ

Frequently asked questions

Rion Shirai's 400 m personal best is 59.60, set on Aug 11, 2023 in Hakatanomori Athletic Stadium, Fukuoka (JPN).

Rion Shirai competes in the 400 m and 300 Metres.

2023 season best: 59.60, set on Aug 11, 2023 in Hakatanomori Athletic Stadium, Fukuoka (JPN). Last competition: 78th Kyushu Athletics Championships, Sunrise Park, Saga on Aug 18, 2023, 48.14.