Koji Kobayashi
- Born
- Jan 16, 1989 (37 years old)
- Events
- Marathon · 10 Miles Road
Koji Kobayashi is a Japan middle-distance runner, born on January 16, 1989. He competes primarily in the 1500m, 3000m and 5000m.
His personal bests include 3:50.71 in the 1500m, 8:22.60 in the 3000m, 14:04.56 in the 5000m, 29:12.69 in the 10000m and 1:03:02 in the Semi. He is currently active on the international athletics circuit, representing Japan.
Personal best · Marathon2:08:51
2021 season best2:17:19Feb 28, 2021 · Otsu
Personal best · 10 Miles Road47:27
Last competitionThe 76th Lake Biwa Mainichi MarathonFeb 28, 2021 · 2:17:19
As of Oct 30, 2026: Marathon 2:08:51, 10 Miles Road 47:27, 2021 season best 2:17:19 (Feb 28, 2021, Otsu (JPN)) · Last competition: The 76th Lake Biwa Mainichi Marathon, Feb 28, 2021, 2:17:19 · 37 years old
Personal bests
WA points calculator →Progression
| Season | Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|---|
| 2021 | Marathon | 2:17:19 | – | Feb 28, 2021 | The 76th Lake Biwa Mainichi Marathon |
| 2020 | 3000m | 8:22.60 | – | Jul 4, 2020 | Mikio Oda Memorial Athletic Field, Tokorozawa (JPN) |
| 2020 | Marathon | 2:09:55 | – | Feb 2, 2020 | Beppu-Oita Mainichi Marathon |
| 2019 | 1500m | 3:58.66 | – | May 18, 2019 | Kumagaya (JPN) |
| 2019 | 5000m | 14:30.23 | – | May 19, 2019 | Kumagaya (JPN) |
| 2019 | 10MilesRoa | 48:30 | – | Dec 1, 2019 | Kosa 10 Mile |
| 2019 | Marathon | 2:18:40 | – | Mar 10, 2019 | Lake Biwa Marathon |
| 2017 | 10000m | 29:30.91 | – | Sep 23, 2017 | Yokohama (JPN) |