Natalia Ryzhonkova defeated Maria Fernanda Alvarez Teran 6-4 6-4 in the Irapuato 25K round of 16 on hard. The result followed the form book — Natalia Ryzhonkova came in leading the head-to-head 3–0. Natalia Ryzhonkova extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-03-15 | Irapuato 25K | R32 | hard | Natalia Ryzhonkova | 6-3 6-2 |
| 2009-11-09 | Phoenix AZ 50K | R32 | hard | Natalia Ryzhonkova | 4-1 |
| 2007-10-15 | Valencia 10K | R16 | hard | Natalia Ryzhonkova | 4-6 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.