| Bill Serafin's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Laurel Highlands FALL CLASSIC 2024 (50K) | Pennsylvania, US | 75 | Saturday, October 19, 2024 | Not yet started |
| Laurel Highlands Ultra 2024 (50K) | Pennsylvania, US | 75 | Saturday, June 8, 2024 | Not yet started |
| Laurel Highlands Ultra 2022 (50k) | Pennsylvania, US | 73 | Saturday, June 11, 2022 | Not yet started |
| 2021 Laurel Highlands (50k) | Pennsylvania, US | 72 | Sunday, June 13, 2021 | 08:27:15.00 |