Tomoki Maruyama

JapanJapanActive
Born
Aug 5, 2006 (20 years old)
Events
400 m · 300 Metres

Tomoki Maruyama is a Japan sprinter, born on August 5, 2006. He competes primarily in the 100m, 200m and 400m.

His personal bests include 10.93 in the 100m, 22.12 in the 200m, 48.09 in the 400m, 3:11.29 in the 4x400m and 34.86 in the 300m. He is currently active on the international athletics circuit, representing Japan.

Personal best · 400 m48.09
2026 season best48.58Apr 5, 2026 · Keio Univ. Hiyoshi Athletics Field, Yokohama
Personal best · 300 Metres34.86
Last competitionThe 102nd WASEDA & KEIO Athletic MeetAug 11, 2026 · 49.22

As of Nov 13, 2026: 400 m 48.09, 300 Metres 34.86, 2026 season best 48.58 (Apr 5, 2026, Keio Univ. Hiyoshi Athletics Field, Yokohama (JPN)) · Last competition: The 102nd WASEDA & KEIO Athletic Meet, Aug 11, 2026, 49.22 · 20 years old

DisciplineResultAll-time
100mNiigata 2022Japan 100 m all-time list10.93*907 pts–
200mNiigata 2024Japan 200 m all-time list22.12909 pts–
400mNiigata 2024Japan 400 m all-time list48.09975 pts–
4x400mUtsunomiya 2026Japan 4 × 400 m all-time list3:11.29–
300mMatsuyama 202234.86913 pts–

* Wind-assisted (> 2.0 m/s)

Progression

SeasonDisciplineResultWindDateCompetitions
2026400m 48.58–Apr 5, 2026The 59th Tokyo Big6 Track Field League
20264x400m 3:11.29–May 23, 2026The 105th Kanto Inter-University Track&Field Championships
2025400m 48.47–Jul 19, 202579th Niigata Pref Championships
2024200m 22.12+0.8Jul 14, 202478th Niigata Pref Championships
2024400m 48.09–Jun 14, 20242024 Hokushinetsu High School Championships, Denka Big Swan Stadium, Niigata
2023200m 22.45+0.0Jul 16, 202377th Niigata Prefectural Championships, Denka Big Swan Stadium, Niigata
2023300m 35.40–Oct 21, 202317th JAAF U18 Athletics Competition
2023400m 48.66–Jul 15, 202377th Niigata Prefectural Championships, Denka Big Swan Stadium, Niigata
FAQ

Frequently asked questions

Tomoki Maruyama's 400 m personal best is 48.09, set on Jun 14, 2024 in Denka Big Swan Stadium, Niigata (JPN).

Tomoki Maruyama competes in the 400 m and 300 Metres.

2026 season best: 48.58, set on Apr 5, 2026 in Keio Univ. Hiyoshi Athletics Field, Yokohama (JPN). Last competition: The 102nd WASEDA & KEIO Athletic Meet on Aug 11, 2026, 49.22.