Sara Ottomano defeated Nina Stadler 6-1 6-3 in the Lenzerheide 25K q16 on clay. The upset overturned the form book — Nina Stadler came in leading the head-to-head 1–0, but Sara Ottomano had been the form player, winning 1 of their last 4 on clay. Sara Ottomano claimed a first win over Nina Stadler in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-26 | Caslano 10K | R32 | clay | Nina Stadler | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.