| Christopher Kolbosky's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Laurel Highlands FALL CLASSIC 2025 (50K) | Virginia, US | 55 | Saturday, September 27, 2025 | 07:42:14.00 |
| Laurel Highlands Ultra 2025 (70.5 Relay) | Virginia, US | 55 | Saturday, June 14, 2025 | 16:15:16.00 |
| Laurel Highlands FALL CLASSIC 2024 (50K) | Utah, US | 54 | Saturday, October 19, 2024 | 08:31:56.00 |
| Laurel Highlands Ultra 2024 (70.5 Relay) | Utah, US | 54 | Saturday, June 8, 2024 | Not yet started |