| Zbigniew Broniszewski's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Laurel Highlands Ultra 2024 (50K) | Maryland, US | 41 | Saturday, June 8, 2024 | 08:08:37.00 |
| 2021 Laurel Highlands (50k) | Maryland, US | 38 | Sunday, June 13, 2021 | 07:30:19.00 |
| Zbigniew Broniszewski's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Laurel Highlands Ultra 2024 (50K) | Maryland, US | 41 | Saturday, June 8, 2024 | 08:08:37.00 |
| 2021 Laurel Highlands (50k) | Maryland, US | 38 | Sunday, June 13, 2021 | 07:30:19.00 |