Maria Fernanda Alvarez Teran defeated Roxane Vaisemberg 6-4 6-4 in the Santiago 10K round of 32 on clay. The upset overturned the form book — Roxane Vaisemberg came in leading the head-to-head 3–0. Maria Fernanda Alvarez Teran claimed a first win over Roxane Vaisemberg in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-07-16 | Campos Do Jordao 25K | R16 | hard | Roxane Vaisemberg | 6-7(2) 6-2 6-1 |
| 2008-10-20 | Augusta GA 25K | R32 | hard | Roxane Vaisemberg | 2-6 6-0 6-3 |
| 2006-10-23 | Luque 10K | QF | clay | Roxane Vaisemberg | 7-6(7) 5-7 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.