Mark Gunderson has 11 recorded races from Boise, Idaho, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 1 - 40 Miles | Ultra Marathon | 3:11:48 | 186 |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 2 - 20 Miles | 2:35:33 | 166 | |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 1 and 2 Totals | Ultra Marathon | 5:47:21 | 173 |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Day 3 - 40 Miles | Ultra Marathon | 3:31:01 | 153 |
| 2024-07-26 | 2024 Life Time Leadville Stage Race Stage Race Series - 3 Day Totals | Ultra Marathon | 9:18:22 | 160 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Stage Race Solo - 3 Day Totals | Ultra Marathon | 9:24:26 | 150 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Day 1 - 40 Miles | Ultra Marathon | 3:14:35 | 158 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Day 2 - 20 Miles | 2:36:02 | 156 | |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Day 3 - 40 Miles | Ultra Marathon | 3:33:49 | 148 |
| 2023-07-28 | 2023 Stages Cycling Leadville Stage Race Days 1 and 2 Totals | Ultra Marathon | 5:50:37 | 152 |
| 2023-07-15 | 2023 Stages Cycling Tahoe Trail Tahoe Trail 100K | Ultra Marathon | 6:10:59 | 222 |