| Julia Arthur's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2023 50 Mile | Colorado, US | 27 | Saturday, September 23, 2023 | Not yet started |
| Never Summer (2022) (100k) | Colorado, US | 25 | Saturday, July 30, 2022 | Not yet started |
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 25 | Saturday, May 7, 2022 | DNF |
| Quad Rock (2018) (Quad Rock 50) | Colorado, US | 21 | Saturday, May 12, 2018 | DNF |