| Brittany Olson's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Blue Sky Trail Marathon 2025 (Trail Marathon) | Colorado, US | 31 | Saturday, October 18, 2025 | Not yet started |
| Red Feather Trail Jamboree 2025 50K | Colorado, US | 31 | Saturday, September 27, 2025 | Not yet started |