Kotaro Tahara
JapanActive- Born
- May 25, 2005 (21 years old)
- Events
- Half Marathon · 10 000 m
Kotaro Tahara is a Japan middle-distance runner, born on May 25, 2005. He competes primarily in the 1500m, 3000m and 5000m.
His personal bests include 4:01.73 in the 1500m, 8:45.23 in the 3000m, 14:12.42 in the 5000m, 29:01.99 in the 10000m and 1:02:06 in the Semi. He is currently active on the international athletics circuit, representing Japan.
Personal best · Half Marathon1:02:06
2026 season best1:05:30Jan 11, 2026
Personal best · 10 000 m29:01.99
Last competitionHOKUREN Distance Challenge in ABASHIRIJul 8, 2026 · 29:49.23
As of Nov 13, 2026: Half Marathon 1:02:06, 10 000 m 29:01.99, 2026 season best 1:05:30 (Jan 11, 2026) · Last competition: HOKUREN Distance Challenge in ABASHIRI, Jul 8, 2026, 29:49.23 · 21 years old
Personal bests
WA points calculator →DisciplineResultAll-time
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 10000m | 29:49.23 | – | Jul 8, 2026 | HOKUREN Distance Challenge in ABASHIRI |
| 2026 | Semi | 1:05:30 | – | Jan 11, 2026 | Tokyo New Year Half Marathon |
| 2026 | Marathon | 2:21:39 | – | Feb 22, 2026 | Osaka Marathon |
| 2025 | 5Kilometre | 14:11 | – | Sep 28, 2025 | The Road of Waseda |
| 2025 | 10000m | 29:01.99 | – | May 24, 2025 | Selection Meeting for 57th All Japan Inter-University Ekiden, Lemon Gas Stadium, Hiratsuka |
| 2025 | Semi | 1:02:06 | – | Jul 5, 2025 | Gold Coast Half Marathon, Gold Coast - Australian Half Marathon Ch. |
| 2024 | 10000m | 29:13.64 | – | Jul 14, 2024 | Summer Distance Challenge |
| 2024 | Semi | 1:03:34 | – | Oct 20, 2024 | Tokyo Legacy Half Marathon |