Isidro Viniegra merino has 2 recorded races from URIQUE, Chihuahua, MX.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-02-28 | 23° Ultra Maratón Caballo Blanco 2026 42K | Marathon | 5:25:06 | 31 |
| 2026-02-28 | 23° Ultra Maratón Caballo Blanco 2026 21K | Half Marathon | 2:17:09 | 17 |