| Dimitar Vlassarev's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Staunton Rocks! Marathon & Half 2023 (Marathon) | Colorado, US | 40 | Saturday, August 26, 2023 | 06:31:18.00 |
| Staunton Rocks! Marathon & Half 2022 (Marathon) | Colorado, US | 39 | Saturday, August 27, 2022 | 05:47:39.00 |
| Staunton Rocks! Marathon & Half (Marathon) | Colorado, US | 38 | Saturday, August 28, 2021 | 05:41:04.00 |
| Blue Sky Trail Marathon (2017) | CO | 35 | Saturday, October 21, 2017 | 05:18:52.00 |