Guillermina Naya defeated Luciana Blatter 6-3 6-3 in the W15 Rosario-Santa Fe 1 quarter-final on clay. The upset overturned the form book — Luciana Blatter came in leading the head-to-head 1–0, but Guillermina Naya had been the form player, winning 6 of their last 9 on clay. Guillermina Naya claimed a first win over Luciana Blatter in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-08-02 | W25 Junin | R32 | clay | Luciana Blatter | 7-5 6-3 |
Averages over each player's completed matches in the selected window (4 vs 8). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About