Ibu Kobayashi

JapanJapan
Born
May 13, 2009 (17 years old)
Events
Javelin Throw

Ibu Kobayashi is a Japan thrower, born on May 13, 2009. She competes primarily in the JT.

Her personal bests include 43.50 in the JT. She ranks 695th all-time in the JT for Japan. She is currently active on the international athletics circuit, representing Japan.

Personal best · Javelin Throw43.50
#695 in Japan
2025 season best43.50Oct 18, 2025 · Prefectural Stadium, Ise
2025 season best
Last competitionTokai High School Newcomers Track and Field ChampionshipsOct 25, 2025 · 41.96
Tokai High School Newcomers Track and Field Championships

As of Nov 15, 2026: Javelin Throw 43.50, 2025 season best 43.50 (Oct 18, 2025, Prefectural Stadium, Ise (JPN)) · Last competition: Tokai High School Newcomers Track and Field Championships, Oct 25, 2025, 41.96 · 17 years old

Personal bests

WA points calculator →
DisciplineResultAll-time
JTIse 2025Japan Javelin Throw all-time list43.50774 pts–

Progression

SeasonDisciplineResultWindDateCompetitions
2025JT 43.50–Oct 18, 202519th JAAF U18 Athletics Competition, Prefectural Stadium, Ise
FAQ

Frequently asked questions

Ibu Kobayashi's Javelin Throw personal best is 43.50, set on Oct 18, 2025 in Prefectural Stadium, Ise (JPN).

Ibu Kobayashi competes in the Javelin Throw.

2025 season best: 43.50, set on Oct 18, 2025 in Prefectural Stadium, Ise (JPN). Last competition: Tokai High School Newcomers Track and Field Championships on Oct 25, 2025, 41.96.