| Rona Van Willigen's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer 2022 (60k) | Colorado, US | 54 | Friday, July 29, 2022 | 11:22:57.00 |
| Blue Sky Marathon 2021 (Blue Sky) | Colorado, US | 53 | Saturday, October 16, 2021 | 05:47:01.00 |
| Never Summer (2021) (60k) | Colorado, US | 53 | Friday, July 30, 2021 | 11:27:49.00 |
| Quad Rock 2021 (Quad Rock 25) | Colorado, US | 52 | Saturday, May 8, 2021 | 06:35:15.00 |
| Quad Rock (2019) (Quad Rock 25) | Colorado, US | 50 | Saturday, May 11, 2019 | 05:51:53.00 |