Mark Nielson has 7 recorded races from Salt Lake City, UT.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-07-24 | Deseret News Marathon Half Marathon | Half Marathon | 3:03:08 | 1136 |
| 2026-05-16 | 24th Annual America First Ogden Marathon 8.2 Mile | 1 Mile | 1:36:33 | 314 |
| 2025-07-24 | Deseret News Marathon 10K | 10K | 1:01:26 | 640 |
| 2025-05-17 | 24th Annual America First Ogden Marathon 5K | 5K | 29:15 | 60 |
| 2025-04-26 | 2025 Salt Lake City Marathon 5K Run/Walk | 5K | 30:23 | 206 |
| 2024-07-24 | Deseret News Marathon 5K | 5K | 29:51 | 306 |
| 2024-07-06 | 15th Annual Hobbler Half Marathon 5K | 5K | 34:33 | 54 |