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| Name: | Colby, Zach |
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| Club: | |||
| Residence: | Seattle, WA | ||
| Year of birth: | 1993 | (Cat. german: M30) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M23) | |
| Nationality: | USA  |
United States | |
| RunnerID: | 2413735 | ||
3 search results (3 Events, 161 km). (More)
| 2026 | 1 Event, 50 km (More) | ||||
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| 11.04.2026 | Lake Sonoma 100K & 50K (USA) | 50km | |||
| 4:41:16 h | Colby, Zach | *San Francisco, CA | Overall: 15 | M: 14 | Cat M23: 6 |
| 2025 | 2 Events, 111 km (More) | ||||
| 30.08.2025 | Grand Traverse Mountain Run (USA) | 65km | |||
| 7:22:51 h | Colby, Zach | *Seattle, WA | Overall: 15 | M: 14 | Cat M23: 10 |
| 19.06.2025 | The Broken Arrow Skyrace (USA) | 46km | |||
| 6:27:20 h | Colby, Zach | *Seattle, WA | Overall: 146 | M: 101 | Cat M23: 65 |
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 | 2025 |
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