Declan Naumann has 4 recorded races from Mantua, UT.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-07-18 | Mantua Dam Race 5 Mile | 1 Mile | 52:02 | 184 |
| 2025-07-19 | Mantua Dam Race 1 Mile | 1 Mile | 07:29 | 20 |
| 2024-07-13 | Mantua Dam Race 1 Mile | 1 Mile | 08:52 | 26 |
| 2023-07-15 | Mantua Dam Race 1 Mile | 1 Mile | 09:47 | 22 |