Vivian Segnini defeated Karen Castiblanco 6-3 6-2 in the Rio De Janeiro 25K round of 16 on clay. The result followed the form book — Vivian Segnini came in leading the head-to-head 3–0. Vivian Segnini extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-09-03 | Barueri 10K | R16 | hard | Vivian Segnini | 6-3 4-6 6-3 |
| 2006-11-06 | Itajai 10K | R32 | clay | Vivian Segnini | 7-6(4) 6-0 |
| 2006-10-23 | Luque 10K | R16 | clay | Vivian Segnini | 6-1 6-2 |