| David Shavlik's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2022 (Quad Rock 50) | Colorado, US | 60 | Saturday, May 7, 2022 | DNF |
| 2021 Silverton Ultra Dirty (100K) | Colorado, US | 59 | Saturday, August 7, 2021 | 23:41:32.00 |
| 2021 Golden Gate Dirty 30 (50K) | Colorado, US | 59 | Saturday, June 12, 2021 | 09:04:44.00 |
| 2017 Golden Gate Dirty 30 (50K) | Colorado, US | 55 | Saturday, June 3, 2017 | DNF |