| Makena Regan's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2025 Sawatch Ascent | Colorado, US | 26 | Sunday, September 28, 2025 | Not yet started |
| 2025 West Line Winder Trail Races (50k) | Colorado, US | 26 | Saturday, September 27, 2025 | 06:54:07.00 |
| 2024 High Lonesome 100 | Colorado, US | 25 | Friday, July 19, 2024 | 36:27:19.00 |
| 2023 High Lonesome 100 | Arizona, US | 24 | Friday, July 21, 2023 | 36:43:46.00 |