Junpei Yamaguchi

JapanJapanActive
Born
Jun 7, 2002 (24 years old)
Events
100 m · 200 m

Junpei Yamaguchi is a Japan sprinter, born on June 7, 2002. He competes primarily in the 100m, 200m and 4x100m.

His personal bests include 10.27 in the 100m, 20.89 in the 200m, 39.61 in the 4x100m, 3:07.35 in the 4x400m and 6.84 in the 60m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 100 m10.27
2026 season best10.43Sep 11, 2026
2026 season best
Personal best · 200 m20.89
Last competition74th Japan Corporate Teams Athletics Championships, Takebishi Stadium, KyotoSep 11, 2026 · 10.43
74th Japan Corporate Teams Athletics Championships, Takebishi Stadium, Kyoto

As of Nov 13, 2026: 100 m 10.27, 200 m 20.89, 2026 season best 10.43 (Sep 11, 2026) · Last competition: 74th Japan Corporate Teams Athletics Championships, Takebishi Stadium, Kyoto, Sep 11, 2026, 10.43 · 24 years old

Personal bests

WA points calculator →
DisciplineResultAll-time2026
100mTottori 2023Japan 100 m all-time list10.27*1,115 pts–#962
200mFukuoka 2023Japan 200 m all-time list20.891,084 pts––
4x100mFukuoka 2024Japan 4 × 100 m all-time list39.61––
4x400mTokyo 2023Japan 4 × 400 m all-time list3:07.35––
60mIndoorOsaka 20236.841,022 pts––
300mKagoshima 202333.491,028 pts–#244

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
2026100m 10.43+0.4Sep 11, 202674th Japan Corporate Teams Athletics Championships, Takebishi Stadium, Kyoto
2026300m 34.40–Mar 8, 2026Spring Track and Field Meet
202560m Indoor6.88–Feb 2, 2025108th Japan Indoor Championships
2025100m 10.44+2.8Jul 19, 2025Fukuoka University Competition, Fukuoka University Stadium, Fukuoka
2025200m 21.37+0.4Jun 7, 202569th Kansai Inter-Corporate Track & Field Championships
20254x100m 40.46–Aug 23, 202573rd Shikoku Athletics Championships
2024100m 10.27+4.0Sep 29, 2024The 52nd Kyushu University Track＆Field Championships, Sports Center Athletics Stadium, Kurume
2024200m 21.04+2.4Aug 18, 202478th Chugoku Athletics Championships, Hamayama Park Athletic Field, Izumo
FAQ

Frequently asked questions

Junpei Yamaguchi's 100 m personal best is 10.27, set on Aug 19, 2023 in Athletic Stadium, Tottori (JPN).

Junpei Yamaguchi competes in the 100 m and 200 m.

2026 season best: 10.43, set on Sep 11, 2026. Last competition: 74th Japan Corporate Teams Athletics Championships, Takebishi Stadium, Kyoto on Sep 11, 2026, 10.43.