Natalia Guitler defeated Natalia Cheng 6-3 6-4 in the Santos 10K qualifying round on clay. The result followed the form book — Natalia Guitler came in leading the head-to-head 2–0. Natalia Guitler extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-15 | Belem 25K | R32 | hard | Natalia Guitler | 0-6 7-6(4) 6-1 |
| 2008-05-05 | Buenos Aires 10K | R32 | clay | Natalia Guitler | 6-3 6-4 |