TI

Tatsuki ISHII

JPNJPNMen
Birth dateDec 7, 1994
Height-
Weight-

Tatsuki ISHII is a Japan long-distance runner, born on December 7, 1994. He competes primarily in the Semi, Marathon and 20Kilometr.

His personal bests include 1:04:32 in the Semi, 2:19:29 in the Marathon, 1:01:23 in the 20Kilometr and 1:35:54 in the 30Kilometr. He is currently active on the international athletics circuit, representing Japan.

Key facts
Half Marathon
1:04:32
20 Kilometres Road
1:01:23
2025 season best
1:36:50
Feb 16, 2025 · Tokyo (JPN)
2025 season best
Last competition
Tokyo Marathon
Mar 2, 2025 · 2:23:43
Tokyo Marathon
Age
31 years old

As of Sep 13, 2026: Half Marathon 1:04:32, 20 Kilometres Road 1:01:23, 2025 season best 1:36:50 (Feb 16, 2025, Tokyo (JPN)) · Last competition: Tokyo Marathon, Mar 2, 2025, 2:23:43 · 31 years old

PB

Personal bests

1:04:32
2:19:29
1:01:23
1:35:54

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2025
30Kilometr
1:36:50-Feb 16, 2025
↓
57th The Ohme 30 & 10 km Road Race
2025
Marathon
2:23:43-Mar 2, 2025
↓
Tokyo Marathon
2024
Marathon
2:19:29-Feb 4, 2024
↓
72nd Beppu-Oita Mainichi Marathon
2017
Marathon
2:22:48-Feb 26, 2017
↓
Tokyo (JPN)
2016
Semi
1:04:32-Mar 6, 2016-Tachikawa (JPN)
2016
30Kilometr
1:35:54-Feb 21, 2016
↓
Tokyo (JPN)
2015
20Kilometr
1:01:23-Oct 17, 2015
↑
Tachikawa (JPN)
2013
20Kilometr
1:02:17-Oct 19, 2013
↑
Tachikawa (JPN)

2025

2 performances
DisciplineResultWindDateCompetitions
Marathon
2:23:43-Mar 2Tokyo Marathon
30Kilometr
1:36:50-Feb 1657th The Ohme 30 & 10 km Road Race

2024

1 performance
DisciplineResultWindDateCompetitions
Marathon
2:19:29-Feb 472nd Beppu-Oita Mainichi Marathon

2017

1 performance
DisciplineResultWindDateCompetitions
Marathon
2:22:48-Feb 26Tokyo Marathon, Tokyo

2016

2 performances
DisciplineResultWindDateCompetitions
Semi
1:04:32-Mar 6Tachikawa Half Marathon, Tachikawa
30Kilometr
1:35:54-Feb 21Tokyo Ohme-Hochi Road Race, Tokyo

2015

1 performance
DisciplineResultWindDateCompetitions
20Kilometr
1:01:23-Oct 17Tachikawa 20 km, Tachikawa

2013

1 performance
DisciplineResultWindDateCompetitions
20Kilometr
1:02:17-Oct 19Tachikawa 20 km, Tachikawa

Honours

No medals

FAQ

Frequently asked questions

What is Tatsuki ISHII's Half Marathon personal best?

Tatsuki ISHII's Half Marathon personal best is 1:04:32, set on Mar 6, 2016 in Tachikawa (JPN).

Which events does Tatsuki ISHII compete in?

Tatsuki ISHII competes in the Half Marathon and 20 Kilometres Road.

How did Tatsuki ISHII perform in 2025?

2025 season best: 1:36:50, set on Feb 16, 2025 in Tokyo (JPN). Last competition: Tokyo Marathon on Mar 2, 2025, 2:23:43.