| Eric Guenther's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2025 Half Marathon (Half Marathon) | Colorado, US | 62 | Sunday, September 28, 2025 | 02:33:07.00 |
| Blue Sky Marathon & Half 2024 (Trail Half Marathon) | Colorado, US | 61 | Saturday, October 19, 2024 | 02:25:22.00 |