Mervin De Guzman Sr. has 4 recorded races from Las Vegas, NV, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-02-22 | 2026 Rock 'n' Roll Las Vegas 10k | 10K | 51:34 | 160 |
| 2024-10-06 | 2024 Rock 'n' Roll San Jose Half Marathon | Half Marathon | 2:45:56 | 3663 |
| 2024-10-05 | 2024 Rock 'n' Roll San Jose 5KM | 5K | 25:06 | 123 |
| 2024-02-25 | 2024 Rock 'n' Roll Las Vegas Half Marathon | Half Marathon | 2:31:04 | 6026 |