Anne Schaefer defeated Masa Zec Peskiric 7-5 6-2 in the Mestre 50K round of 32 on clay. The upset overturned the form book — Masa Zec Peskiric came in leading the head-to-head 3–1, but Anne Schaefer had been the form player, winning 8 of their last 10 on clay. Anne Schaefer narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-08-27 | Mamaia 25K | R16 | clay | Masa Zec Peskiric | 4-6 6-2 6-4 |
| 2008-06-30 | Bastad 25K | QF | clay | Anne Schaefer | 7-6(2) 6-1 |
| 2008-06-09 | Campobasso 25K | F | clay | Masa Zec Peskiric | 6-3 6-3 |
| 2007-11-19 | Beloura-Sintra 25K | R32 | clay | Masa Zec Peskiric | 6-3 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.