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| Name: | O'Brien, Jonathan |
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| Club: | |||
| Residence: | Aurora, IL | ||
| Year of birth: | 1988 | (Cat. german: M35) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M35) | |
| Nationality: | USA  |
United States | |
| RunnerID: | 2196791 | ||
3 search results (3 Events, 150 km). (More)
| 2026 | 1 Event, 50 km (More) | ||||
|---|---|---|---|---|---|
| 18.04.2026 | Earth Day 50k (USA) | 50km | |||
| 6:05:22 h | O'Brien, Jonathan | *Aurora, IL | Overall: 28 | M: 23 | Cat M35: 4 |
| 2024 | 2 Events, 100 km (More) | ||||
| 05.10.2024 | The Hennepin Hundred - 50 Km Run (USA) | 50km | |||
| 5:16:00 h | O'Brien, Jonathan | *Aurora, IL | Overall: 13 | M: 12 | Cat M35: 6 |
| 20.04.2024 | Earth Day 50k (USA) | 50km | |||
| 5:38:47 h | O'Brien, Jonathan | *Aurora, IL | Overall: 19 | M: 17 | Cat M35: 2 |
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 | 2026 | 2024 |
|---|
Comparison table
Comparison of performances in races with multiple participations
| 2026 | 2024 | ||
|---|---|---|---|
| Earth Day 50k | 2 | 6:05:22 | 5:38:47 |