| Will Kirwin's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2023 Sawatch Ascent 50k | Colorado, US | 48 | Sunday, September 24, 2023 | Not yet started |
| 2023 West Line Winder 50k | Colorado, US | 48 | Saturday, September 23, 2023 | 07:02:44.00 |
| 2022 West Line Winder 50k | Colorado, US | 47 | Saturday, September 24, 2022 | 07:00:44.00 |