| Lynn Stiff's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer 60k (2024) | Colorado, US | 38 | Friday, July 26, 2024 | 09:04:07.00 |
| Quad Rock 2023 (Quad Rock 25) | Colorado, US | 37 | Saturday, May 6, 2023 | 05:09:08.00 |
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 36 | Saturday, May 7, 2022 | 06:29:28.00 |