Kosei Onishi

JapanJapanActive
Born
Feb 8, 2005 (21 years old)
Events
Javelin Throw

Kosei Onishi is a Japan thrower, born on February 8, 2005. He competes primarily in the JT.

His personal bests include 71.30 in the JT. He ranks 96th all-time in the JT for Japan. He is currently active on the international athletics circuit, representing Japan.

Personal best · Javelin Throw71.30
#96 in Japan
2026 season best71.30Apr 24, 2026 · Lemon Gas Stadium, Hiratsuka
2026 season best
Last competition95th Japan Inter-University Athletics ChampionshipsSep 5, 2026 · 67.97
95th Japan Inter-University Athletics Championships

As of Nov 13, 2026: Javelin Throw 71.30, 2026 season best 71.30 (Apr 24, 2026, Lemon Gas Stadium, Hiratsuka (JPN)) · Last competition: 95th Japan Inter-University Athletics Championships, Sep 5, 2026, 67.97 · 21 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
JTHiratsuka 2026Japan Javelin Throw all-time list71.30978 pts–#311

Progression

SeasonDisciplineResultWindDateCompetitions
2026JT 71.30–Apr 24, 2026All Japan University Track & Field Challenge
2023JT 64.65–Sep 23, 202334th Kanto University Rookies Athletics Championships, Gion Stadium, Sagamihara
FAQ

Frequently asked questions

Kosei Onishi's Javelin Throw personal best is 71.30, set on Apr 24, 2026 in Lemon Gas Stadium, Hiratsuka (JPN).

Kosei Onishi competes in the Javelin Throw.

2026 season best: 71.30, set on Apr 24, 2026 in Lemon Gas Stadium, Hiratsuka (JPN). Last competition: 95th Japan Inter-University Athletics Championships on Sep 5, 2026, 67.97.