David Leon Moros defeated Ivan Bas Mengual 6-4 6-2 in the M15 Platja D'Aro 2 q64 on clay. The upset overturned the form book — Ivan Bas Mengual came in leading the head-to-head 1–0. David Leon Moros claimed a first win over Ivan Bas Mengual in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-10-24 | M15 Madrid 1 | Q32 | clay | Ivan Bas Mengual | 6-3 6-3 |