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| Name: | Duffy, Jay |
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| Club: | |||
| Residence: | Chicago, IL | ||
| Year of birth: | 1988 | (Cat. german: M35) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M35) | |
| Nationality: | USA  |
United States | |
| RunnerID: | 1682624 | ||
4 search results (4 Events, 402.335 km). (More)
| 2026 | 1 Event, 80.467 km (More) | ||||
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| 09.05.2026 | Ice Age Trail 50 Mile Run (USA) | 50mi | |||
| 10:41:34 h | Duffy, Jay | *Chicago, IL | Overall: 112 | M: 79 | Cat M35: 15 |
| 2025 | 1 Event, 160.934 km (More) | ||||
| 04.-05.10.2025 | The Hennepin Hundred - 100 Mile Run (USA) | 100mi | |||
| 24:09:29 h | Duffy, Jay | *Chicago, IL | Overall: 80 | M: 59 | Cat M35: 11 |
| 2023 | 1 Event, 80.467 km (More) | ||||
| 13.05.2023 | Ice Age Trail 50 Mile Run (USA) | 50mi | |||
| 10:50:12 h | Duffy, Jay | *Chicago, IL | Overall: 142 | M: 115 | Cat M23: 29 |
| 2021 | 1 Event, 80.467 km (More) | ||||
| 11.09.2021 | Ice Age Trail 50 Mile Run (USA) | 50mi | |||
| 11:56:24 h | Duffy, Jay | *Chicago, IL | Overall: 109 | M: 78 | Cat M23: 16 |
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 | 2023 | 2021 |
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Comparison table
Comparison of performances in races with multiple participations
| 2026 | 2025 | 2023 | 2021 | ||
|---|---|---|---|---|---|
| Ice Age Trail 50 Mile Run | 3 | 10:41:34 | 10:50:12 | 11:56:24 |