Mary-Margaret Madden has 2 recorded races from Las Vegas, NV, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-06-01 | 2025 Rock 'n' Roll San Diego Half Marathon | Half Marathon | 1:57:33 | 3899 |
| 2023-02-26 | 2023 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 2:04:09 | 2687 |