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| Name: | O'Brien, Serena |
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| Residence: | |||
| Year of birth: | 1993 | (Cat. german: W30) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: W23) | |
| Nationality: | USA  |
United States | |
| RunnerID: | 1710650 | ||
2 search results (2 Events, 138.403 km). (More)
| 2023 | 1 Event, 57.936 km (More) | ||||
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| 09.09.2023 | Mendocino Running Festival 12 Hours (USA) | 12h | |||
| 57.936 km | O'Brien, Serena | Overall: 12 | F: 6 | Cat W23: 3 | |
| 2022 | 1 Event, 80.467 km (More) | ||||
| 09.04.2022 | Lake Sonoma 50 Mile Race (USA) | 50mi | |||
| 14:19:41 h | O'Brien, Serena | Overall: 251 | F: 91 | Cat W23: 39 | |
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 | 2023 | 2022 |
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