| Heath Sivak's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2025 50K | Colorado, US | 39 | Saturday, September 27, 2025 | 06:55:44.00 |
| Staunton Rocks! Marathon & Half 2023 (Half Marathon) | Colorado, US | 37 | Saturday, August 26, 2023 | 02:19:13.00 |
| Heath Sivak's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Red Feather Trail Jamboree 2025 50K | Colorado, US | 39 | Saturday, September 27, 2025 | 06:55:44.00 |
| Staunton Rocks! Marathon & Half 2023 (Half Marathon) | Colorado, US | 37 | Saturday, August 26, 2023 | 02:19:13.00 |