| Name: | Kokubo, Jun | 小久保淳 |
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| Club: | |||
| Residence: | Kanagawa Pref. | ||
| Year of birth: | 1971 | (Cat. german: M55) | |
| Date of birth: | 14.07.1971 | (Cat. internat.: M50) | |
| Nationality: | JPN ![]() |
Japan | |
| RunnerID: | 439456 | ||
27 search results (27 Events, 2452.734 km). (More)
| 2025 | 4 Events, 341.5 km (More) | ||||
|---|---|---|---|---|---|
| 14.12.2025 | Izu Trail Journey (JPN) | 70km | |||
| 13:05:45 h | Kokubo, Jun | Overall: 687 | M: 605 | Cat M50: 87 | |
| 15.-16.11.2025 | FunTrails100K Round (JPN) | 100km | |||
| 25:57:36 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 166 | M: 130 | Cat M50: 25 |
| 12.-13.10.2025 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 16:46:29 h | Kokubo, Jun | Overall: 481 | M: 443 | Cat M50: 79 | |
| 20.07.2025 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 15:30:15 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 478 | M: 416 | Cat M50: 88 |
| 2024 | 4 Events, 371.5 km (More) | ||||
| 16.-17.11.2024 | FunTrails100K Round (JPN) | 100km | |||
| 28:54:01 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 269 | M: 228 | Cat M50: 36 |
| 13.-14.10.2024 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 15:39:06 h | Kokubo, Jun | Overall: 580 | M: 526 | Cat M50: 90 | |
| 14.07.2024 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 14:38:42 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 267 | M: 238 | Cat M50: 36 |
| 14.04.2024 | Tamagawa Ultra Marathon - 100 km (JPN) | 100km | |||
| 11:40:38 h | Kokubo, Jun | Overall: 29 | M: 26 | Cat M50: 3 | |
| 2023 | 2 Events, 200 km (More) | ||||
| 21.05.2023 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 13:16:38 h | Kokubo, Jun | Overall: 420 | M: 381 | Cat M50: 79 | |
| 23.04.2023 | Tamagawa Ultra Marathon - 100 km (JPN) | 100km | |||
| 10:44:11 h | Kokubo, Jun | Overall: 13 | M: 12 | Cat M50: 3 | |
| 2022 | 1 Event, 70 km (More) | ||||
| 11.12.2022 | Izu Trail Journey (JPN) | 70km | |||
| 11:03:17 h | Kokubo, Jun | Overall: 550 | M: 494 | Cat M50: 72 | |
| 2021 | 1 Event, 100 km (More) | ||||
| 25.04.2021 | Tokyo Ultra Marathon - 100 km (JPN) | 100km | |||
| 11:35:38 h | Kokubo, Jun | Overall: 48 | M: 46 | Cat M45: 9 | |
| 2019 | 3 Events, 271.7 km (More) | ||||
| 08.12.2019 | Izu Trail Journey (JPN) | 71.7km | |||
| 10:57:40 h | Kokubo, Jun | Overall: 652 | M: 595 | Cat M45: 106 | |
| 13.07.2019 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 13:42:46 h | Kokubo, Jun | Overall: 165 | M: 153 | Cat M45: 30 | |
| 19.05.2019 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 13:16:24 h | Kokubo, Jun | Overall: 937 | M: 831 | Cat M45: 176 | |
| 2018 | 2 Events, 171.7 km (More) | ||||
| 09.12.2018 | Izu Trail Journey (JPN) | 71.7km | |||
| 12:13:03 h | Kokubo, Jun | Overall: 672 | M: 610 | Cat M45: 124 | |
| 20.05.2018 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 13:09:14 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 812 | M: 739 | Cat M45: 166 |
| 2017 | 4 Events, 321.7 km (More) | ||||
| 10.12.2017 | Izu Trail Journey (JPN) | 71.7km | |||
| 11:44:20 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 459 | M: 423 | Cat M45: 71 |
| 15.07.2017 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 13:24:02 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 156 | M: 139 | Cat M45: 29 |
| 27.05.2017 | OSJ Okukuji Trail 50k (JPN) | 50km | |||
| 12:01:10 h | Kokubo, Jun | Overall: 168 | M: 159 | Cat M45: 28 | |
| 21.05.2017 | Yatsugatake Nobeyama 100 km (JPN) | 100km | |||
| 13:55:11 h | Kokubo, Jun | *Ibaraki Pref. | Overall: 1038 | M: 917 | Cat M45: 203 |
| 2016 | 1 Event, 71.7 km (More) | ||||
| 11.12.2016 | Izu Trail Journey (JPN) | 71.7km | |||
| 11:25:18 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 404 | M: 361 | Cat M45: 60 |
| 2015 | 1 Event, 100 km (More) | ||||
| 18.07.2015 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 14:23:24 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 252 | M: 235 | Cat M40: 55 |
| 2014 | 2 Events, 260.934 km (More) | ||||
| 04.-05.10.2014 | OSJ Koumi 100 (JPN) | 100mi | |||
| 35:26:13 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 23 | M: 21 | Cat M40: 6 |
| 19.07.2014 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 14:58:53 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 326 | M: 304 | Cat M40: 74 |
| 2013 | 2 Events, 172 km (More) | ||||
| 13.07.2013 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 16:28:54 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 470 | M: 443 | Cat M40: 91 |
| 10.03.2013 | Izu Trail Journey (JPN) | 72km | |||
| 13:09:34 h | Kokubo, Jun | *Kanagawa Pref. | Overall: 946 | M: 854 | Cat M40: 177 |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2024 | 2023 | 2022 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 |
|---|
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Izu Trail Journey | 7 | 13:05:45 | 11:03:17 | 10:57:40 | 12:13:03 | 11:44:20 | 11:25:18 | 13:09:34 | |||||
| OSJ Ontake 100km Ultra Trail | 7 | 15:30:15 | 14:38:42 | 13:42:46 | 13:24:02 | 14:23:24 | 14:58:53 | 16:28:54 | |||||
| Yatsugatake Nobeyama 100 km | 4 | 13:16:38 | 13:16:24 | 13:09:14 | 13:55:11 | ||||||||
| Tamagawa Ultra Marathon - 100 km | 2 | 11:40:38 | 10:44:11 | ||||||||||
| FunTrails100K Round | 2 | 25:57:36 | 28:54:01 | ||||||||||
| Hasetsune Cup - Japan Mountain Endurance Race | 2 | 16:46:29 | 15:39:06 |





