| Jackie Welsh's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Laurel Highlands Ultra 2024 (70.5) | Pennsylvania, US | 27 | Saturday, June 8, 2024 | 21:34:56.00 |
| 2023 Twisted Branch Trail Run (2023 Twisted Branch Trail Run) | Colorado, US | 26 | Saturday, August 19, 2023 | 19:34:05.13 |
| Blue Sky Marathon 2022 (Blue Sky) | Colorado, US | 25 | Saturday, October 15, 2022 | 05:57:33.00 |
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 25 | Saturday, May 7, 2022 | 06:54:44.00 |