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| Name: | Arai, Masaki | 新井正樹 |
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| Club: | 千葉県 | ||
| Residence: | Chiba Pref. | ||
| Year of birth: | 1966 | (Cat. german: M60) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M55) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 426530 | ||
4 search results (4 Events, 259 km). (More)
| 2025 | 1 Event, 80 km (More) | ||||
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| 01.-02.03.2025 | Onagawa 100 trails - 80km (JPN) | 80km | |||
| 16:57:05 h | Arai, Masaki | *Chiba Pref. | Overall: 54 | M: 48 | Cat M55: 5 |
| 2023 | 2 Events, 119 km (More) | ||||
| 01.10.2023 | Naeba-Sanroku Geopark Tsunan Ultramarathon 64K (JPN) | 64km | |||
| 9:38:22 h | Arai, Masaki | 千葉県 | Overall: 45 | M: 32 | Cat M55: 6 |
| 13.05.2023 | Kimitsu Ultra Marathon (JPN) | 55km | |||
| 8:15:50 h | Arai, Masaki | Overall: 158 | M: 132 | Cat M55: 11 | |
| 2013 | 1 Event, 60 km (More) | ||||
| 01.06.2013 | Tokyo Shibamata 60 km (JPN) | 60km | |||
| 7:50:20 h | Arai, Masaki | *Chiba Pref. | Overall: 499 | M: 408 | Cat M45: 54 |
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 | 2023 | 2013 |
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