| Ron Nies's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2025 Sawatch Ascent | Colorado, US | 58 | Sunday, September 28, 2025 | Not yet started |
| 2024 West Line Winder Trail Races (50k) | Colorado, US | 57 | Saturday, September 28, 2024 | 06:11:32.00 |
| 2021 West Line Winder 50k | Colorado, US | 54 | Saturday, September 25, 2021 | 06:58:55.00 |