Vivian Segnini defeated Maria Fernanda Alvarez Teran 7-6 2-6 6-0 in the Santa Cruz 10K round of 32 on clay. The upset overturned the form book — Maria Fernanda Alvarez Teran came in leading the head-to-head 3–1. Vivian Segnini narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-03-21 | Poza Rica 10K | QF | hard | Maria Fernanda Alvarez Teran | 6-2 7-5 |
| 2008-07-07 | Bogota 25K | QF | clay | Maria Fernanda Alvarez Teran | 1-6 6-1 6-4 |
| 2007-12-03 | La Habana 10K | QF | hard | Vivian Segnini | 6-3 3-6 2-0 |
| 2007-11-05 | Lima 10K | F | clay | Maria Fernanda Alvarez Teran | 7-6(7) 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.