| Jon Andersen's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2025 Half Marathon (Half Marathon) | Colorado, US | 50 | Sunday, September 28, 2025 | 03:39:57.00 |
| Red Feather Trail Jamboree 2023 Half Marathon | Colorado, US | 48 | Sunday, September 24, 2023 | 03:19:29.00 |