Diana Stomlega defeated Carolina Prats Millan 6-3 6-3 in the Les Franqueses Del Valles 10K round of 32 on hard. The upset overturned the form book — Carolina Prats Millan came in leading the head-to-head 3–1. Diana Stomlega narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-04-02 | Torrent 10K | R32 | clay | Carolina Prats Millan | 6-2 6-2 |
| 2011-09-05 | Madrid 10K | R16 | hard | Carolina Prats Millan | 6-2 7-6(5) |
| 2011-07-04 | Valladolid 10K | R16 | hard | Carolina Prats Millan | 6-3 6-3 |
| 2010-10-25 | StCugat 10K | R16 | clay | Diana Stomlega | 6-1 6-1 |