Koki Tanaka
JapanActive- Born
- Jan 12, 1994 (32 years old)
- Events
- Half Marathon · Marathon
Koki Tanaka is a Japan middle-distance runner, born on January 12, 1994. He competes primarily in the 1500m, 5000m and 10000m.
His personal bests include 4:03.09 in the 1500m, 13:55.69 in the 5000m, 29:00.37 in the 10000m, 1:02:15 in the Semi and 2:13:36 in the Marathon. He is currently active on the international athletics circuit, representing Japan.
Personal best · Half Marathon1:02:15
2026 season best1:06:13Jan 25, 2026
Personal best · Marathon2:13:36
Last competitionOsaka Half MarathonJan 25, 2026 · 1:06:13
As of Nov 7, 2026: Half Marathon 1:02:15, Marathon 2:13:36, 2026 season best 1:06:13 (Jan 25, 2026) · Last competition: Osaka Half Marathon, Jan 25, 2026, 1:06:13 · 32 years old
Personal bests
WA points calculator →DisciplineResultAll-time
20KilometrTokyo 20141:00:29–
Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | Semi | 1:06:13 | – | Jan 25, 2026 | Osaka Half Marathon |
| 2025 | Semi | 1:08:17 | – | Oct 19, 2025 | Tokyo Legacy Half Marathon |
| 2021 | 1500m | 4:03.09 | – | May 22, 2021 | Municipal Sayagatani Stadium, Kitakyushu (JPN) |
| 2021 | 5000m | 14:35.03 | – | May 23, 2021 | Municipal Sayagatani Stadium, Kitakyushu (JPN) |
| 2021 | 10000m | 29:38.17 | – | Oct 2, 2021 | Municipal Stadium, Miyoshi (JPN) |
| 2021 | Semi | 1:04:47 | – | Feb 14, 2021 | Yamaguchi (JPN) |
| 2020 | 10000m | 29:00.37 | – | Oct 3, 2020 | Kokushikan University Stadium, Tama (JPN) |
| 2019 | 5000m | 14:29.58 | – | Apr 6, 2019 | Tokyo (JPN) |