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| Name: | Okubo, Masashi | 大久保将司 |
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| Club: | 茨城爆走会 | ||
| Residence: | Ibaraki Pref. | ||
| Year of birth: | 1987 | (Cat. german: M35) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M35) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 1702922 | ||
4 search results (4 Events, 293 km). (More)
| 2025 | 2 Events, 134 km (More) | ||||
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| 21.09.2025 | Tsukuba Renjyo 70 Km Road & Trail Run (JPN) | 72km | |||
| 8:06:02 h | Okubo, Masashi | 茨城爆走会 | Overall: 5 | M: 5 | Cat M35: 3 |
| 25.05.2025 | OSJ Okukuji Trail 60k (JPN) | 62km | |||
| 12:39:59 h | Okubo, Masashi | 茨城爆走会 | Overall: 140 | M: 127 | Cat M35: 13 |
| 2022 | 2 Events, 159 km (More) | ||||
| 28.05.2022 | OSJ Okukuji Trail 60k (JPN) | 59km | |||
| 11:55:48 h | Okubo, Masashi | Overall: 116 | M: 108 | Cat M23: 13 | |
| 13.03.2022 | Ibaraki 100k Ultra Marathon (JPN) | 100km | |||
| 9:07:22 h | Okubo, Masashi | Overall: 31 | M: 31 | Cat M23: 6 | |
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 | 2022 |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2022 | ||
|---|---|---|---|
| OSJ Okukuji Trail 60k | 2 | 12:39:59 | 11:55:48 |