| Rosy Southwell's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2025 Half Marathon (Half Marathon) | Colorado, US | 34 | Sunday, September 28, 2025 | 02:11:27.00 |
| Red Feather Trail Jamboree 2024 50K | Colorado, US | 33 | Saturday, September 21, 2024 | 05:51:58.00 |