Guillermo Peralta Horna has 2 recorded races from Perú.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-08-24 | 116° KIA MEDIA MARATÓN DE LIMA & 10K BY PUMA 21.097K | Half Marathon | 1:59:46 | 3390 |
| 2025-02-02 | Life Time Miami Marathon & Half presented by FP Movement Half Marathon | Half Marathon | 1:57:07 | 2474 |