Maria Irigoyen defeated Roxane Vaisemberg 2-6 6-0 6-1 in the Florianopolis q32 on hard. The upset overturned the form book — Roxane Vaisemberg came in leading the head-to-head 4–2. Maria Irigoyen narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-07-16 | Campos Do Jordao 25K | QF | hard | Maria Irigoyen | 6-2 6-0 |
| 2012-02-06 | Riviera De Sao Lourenco 25K | QF | hard | Roxane Vaisemberg | 6-0 6-3 |
| 2008-09-01 | Buenos Aires Garin 10K | F | clay | Roxane Vaisemberg | 6-2 7-5 |
| 2007-10-01 | Monterrey 25K | SF | hard | Maria Irigoyen | 6-2 6-3 |
| 2006-10-30 | Santa Cruz 25K | QF | clay | Roxane Vaisemberg | 6-1 6-2 |
| 2005-10-31 | Sao Paulo 10K | QF | hard | Roxane Vaisemberg | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.