TA

Tomohiro Arai

JPNJPNMen
Birth dateDec 27, 2003
Height-
Weight-

Tomohiro Arai is a Japan long-distance runner, born on December 27, 2003. He competes primarily in the 5000m, 10000m and Semi.

His personal bests include 13:44.14 in the 5000m, 28:21.34 in the 10000m, 1:03:12 in the Semi and 1:37:39 in the 30Kilometr. He is currently active on the international athletics circuit, representing Japan.

Key facts
10 000 m
28:21.34
Half Marathon
1:03:12
2026 season best
1:37:39
Feb 15, 2026 · Ohme (JPN)
2026 season best
Last competition
58th The Ohme 30 & 10 km Road Race, Ohme
Feb 15, 2026 · 1:37:39
58th The Ohme 30 & 10 km Road Race, Ohme
Age
22 years old

As of Sep 23, 2026: 10 000 m 28:21.34, Half Marathon 1:03:12, 2026 season best 1:37:39 (Feb 15, 2026, Ohme (JPN)) · Last competition: 58th The Ohme 30 & 10 km Road Race, Ohme, Feb 15, 2026, 1:37:39 · 22 years old

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2026
30Kilometr
1:37:39-Feb 15, 2026-58th The Ohme 30 & 10 km Road Race, Ohme
2025
5000m
13:58.04-Nov 16, 2025
↑
18th NITTAIDAI Challenge Games, NITTAIDAI Athletic Stadium, Yokohama
2025
10000m
28:21.34-Nov 29, 2025
↑
19th NITTAIDAI Challenge Games
2025
Semi
1:03:12-Oct 18, 2025
↑
The 102nd Hakone Ekiden Qualifying Meet, Showa Kinen Park, Tachikawa
2024
5000m
13:44.14-Nov 10, 2024
↑
12th NITTAIDAI Challenge Games, NITTAIDAI Athletic Stadium, Yokohama
2024
10000m
28:53.28-Jul 14, 2024
↑
Summer Distance Challenge
2024
Semi
1:03:58-Mar 10, 2024
↑
27th All Japan University Men's Half Marathon Championship
2023
Semi
1:03:38-Oct 14, 2023
↑
The 100th Hakone Ekiden Qualifying Meet
2022
5000m
14:15.73-Apr 24, 2022
↑
NITTAIDAI Athletic Stadium, Yokohama (JPN)
2022
10000m
29:22.73-Nov 27, 2022
↑
NITTAIDAI Athletic Stadium, Yokohama (JPN)
2021
5000m
14:33.67-Dec 5, 2021
↑
NITTAIDAI Athletic Stadium, Yokohama (JPN)
2020
5000m
14:44.64-Dec 6, 2020
↑
NITTAIDAI Athletic Stadium, Yokohama (JPN)

2026

1 performance
DisciplineResultWindDateCompetitions
30Kilometr
1:37:39-Feb 1558th The Ohme 30 & 10 km Road Race, Ohme

2023

2 performances
DisciplineResultWindDateCompetitions
Semi
1:03:38-Oct 14The 100th Hakone Ekiden Qualifying Meet
Semi
1:04:37-Feb 5Kagawa Marugame International Half Marathon

2022

4 performances
DisciplineResultWindDateCompetitions
10000m
29:22.73-Nov 27301st Nippon Sport Science University Long Distance Competition, NITTAIDAI Athletic Stadium, Yokohama
5000m
14:30.15-Nov 13300th Nippon Sport Science University Long Distance Competition, NITTAIDAI Athletic Stadium, Yokohama
5000m
14:59.71-May 20101st Kanto Inter-University Athletics Championships, National Stadium, Tokyo - Division 2
5000m
14:15.73-Apr 24294th Nippon Sport Science University Long Distance Competition, NITTAIDAI Athletic Stadium, Yokohama

2021

5 performances
DisciplineResultWindDateCompetitions
5000m
14:33.67-Dec 5293th Nippon Sport Science University Long Distance Competition, NITTAIDAI Athletic Stadium, Yokohama
5000m
14:34.38-Oct 3291st Nippon Sport Science University Long Distance Competition, NITTAIDAI Athletic Stadium, Yokohama
5000m
14:59.38-Jun 1974th Kita-Kantou High School Athletic Meet, Todoroki Stadium, Kawasaki
5000m
15:02.55-Jun 6288th Nittadai(NSSU) Distance Meet, NITTAIDAI Athletic Stadium, Yokohama
5000m
14:51.88-Apr 25286th Nippon Sport Science University Long Distance Competition, NITTAIDAI Athletic Stadium, Yokohama

2020

1 performance
DisciplineResultWindDateCompetitions
5000m
14:44.64-Dec 6282nd Nittadai(NSSU) Distance Meet, NITTAIDAI Athletic Stadium, Yokohama

Honours

No medals

FAQ

Frequently asked questions

What is Tomohiro Arai's 10 000 m personal best?

Tomohiro Arai's 10 000 m personal best is 28:21.34, set on Nov 29, 2025 in NITTAIDAI Athletic Stadium, Yokohama (JPN).

Which events does Tomohiro Arai compete in?

Tomohiro Arai competes in the 10 000 m and Half Marathon.

How did Tomohiro Arai perform in 2026?

2026 season best: 1:37:39, set on Feb 15, 2026 in Ohme (JPN). Last competition: 58th The Ohme 30 & 10 km Road Race, Ohme on Feb 15, 2026, 1:37:39.