Mason Shields has 2 recorded races from Las Vegas, NV, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2023-02-26 | 2023 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 1:51:39 | 1249 |
| 2022-02-27 | 2022 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 1:52:15 | 1204 |