Natalia Ryzhonkova advanced when Maria Fernanda Alvarez Teran retired 4-1 in the Phoenix AZ 50K round of 32. 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 |
| 2009-03-16 | Irapuato 25K | R16 | hard | Natalia Ryzhonkova | 6-4 6-4 |
| 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.