Koki Yoshioka
JapanActive- Born
- Jan 6, 1998 (28 years old)
- Events
- Marathon · Half Marathon
Koki Yoshioka is a Japan long-distance runner, born on January 6, 1998. He competes primarily in the 5000m, 10000m and Semi.
His personal bests include 13:46.89 in the 5000m, 28:34.66 in the 10000m, 1:01:40 in the Semi, 2:07:28 in the Marathon and 46:55 in the 10MilesRoa. He is currently active on the international athletics circuit, representing Japan.
Personal best · Marathon2:07:28
2026 season best2:08:51Feb 22, 2026 · Osaka
Personal best · Half Marathon1:01:40
Last competitionHOKUREN Distance Challenge in ABASHIRIJul 8, 2026 · 28:56.11
As of Oct 27, 2026: Marathon 2:07:28 (#574 all-time), Half Marathon 1:01:40, 2026 season best 2:08:51 (Feb 22, 2026, Osaka (JPN)) · Last competition: HOKUREN Distance Challenge in ABASHIRI, Jul 8, 2026, 28:56.11 · 28 years old
Personal bests
WA points calculator →Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2026 | 10000m | 28:56.11 | – | Jul 8, 2026 | HOKUREN Distance Challenge in ABASHIRI |
| 2026 | Semi | 1:01:58 | – | Apr 26, 2026 | Gifu Half Marathon |
| 2026 | Marathon | 2:08:51 | – | Feb 22, 2026 | Osaka Marathon |
| 2025 | 5000m | 13:56.81 | – | May 4, 2025 | 36th Golden Games in Nobeoka |
| 2025 | 10000m | 29:34.02 | – | May 17, 2025 | 68th Kyushu Corporate Athletics Championships, Honjo Athletic Stadium, Kitakyushu |
| 2025 | Marathon | 2:13:47 | – | Mar 2, 2025 | Tokyo Marathon |
| 2024 | Semi | 1:01:44 | – | Jan 28, 2024 | Osaka Half Marathon, Osaka |
| 2024 | Marathon | 2:10:42 | – | Feb 25, 2024 | Osaka Marathon |