Rena Kobayashi

JapanJapanActive
Born
Jul 27, 2004 (22 years old)
Events
400 m hurdles · 400 m

Rena Kobayashi is a Japan sprinter, born on July 27, 2004. She competes primarily in the 100m, 400m and 100mH.

Her personal bests include 12.96 in the 100m, 59.08 in the 400m, 15.67 in the 100mH, 1:03.26 in the 400mH and 1.57 in the HJ. She is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m hurdles1:03.26
2026 season best1:04.72May 9, 2026 · Municipal Mizuho Stadium, Nagoya
2026 season best
Personal best · 400 m59.08
Last competitionThe 79th West-Japan Inter-Unversity Track＆ Field ChampionshipsJun 20, 2026 · 1:09.38
The 79th West-Japan Inter-Unversity Track＆ Field Championships

As of Nov 15, 2026: 400 m hurdles 1:03.26, 400 m 59.08, 2026 season best 1:04.72 (May 9, 2026, Municipal Mizuho Stadium, Nagoya (JPN)) · Last competition: The 79th West-Japan Inter-Unversity Track＆ Field Championships, Jun 20, 2026, 1:09.38 · 22 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
100mIse 2020Japan 100 m all-time list12.96810 pts–
400mFukuoka 2024Japan 400 m all-time list59.08868 pts–
100mHIse 2022Japan 100 m hurdles all-time list15.67817 pts–
400mHGifu 2024Japan 400 m hurdles all-time list1:03.26929 pts–
HJIse 2020Japan High Jump all-time list1.57801 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2026400mH 1:04.72–May 9, 2026Tokai Conference Inter Collegiate Track＆Field Championships
2025400mH 1:04.44–Aug 23, 2025The 68th Tokai Track and Field Championships, Prefectural Stadium, Ise
2024400m 59.08–Jul 5, 2024West Japan Inter University Track＆Field Championships, Hakatanomori Athletic Stadium, Fukuoka
2024400mH 1:03.26–May 25, 202490th Tokai Interscholastic Athletics Championships, Nagaragawa Stadium, Gifu
2023400mH 1:04.82–May 27, 2023Tokai Inter-University Track & Field Championships
2022100mH 15.67+1.6Apr 16, 2022Prefectural Stadium, Ise (JPN)
2022400m 59.76–Jul 10, 2022Prefectural Stadium, Ise (JPN)
2022400mH 1:04.39–Oct 2, 2022Central Athletics Stadium, Yokkaichi (JPN)
FAQ

Frequently asked questions

Rena Kobayashi's 400 m hurdles personal best is 1:03.26, set on May 25, 2024 in Nagaragawa Stadium, Gifu (JPN).

Rena Kobayashi competes in the 400 m hurdles and 400 m.

2026 season best: 1:04.72, set on May 9, 2026 in Municipal Mizuho Stadium, Nagoya (JPN). Last competition: The 79th West-Japan Inter-Unversity Track＆ Field Championships on Jun 20, 2026, 1:09.38.