Jorgelina Torti defeated Monika Mastalirova 6-2 6-2 in the Guayaquil 10K round of 32 on clay. The upset overturned the form book — Monika Mastalirova came in leading the head-to-head 1–0, but Jorgelina Torti had been the form player, winning 4 of their last 8 on clay. Jorgelina Torti claimed a first win over Monika Mastalirova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-11-10 | Rio de Janeiro 10K | R32 | clay | Monika Mastalirova | 6-4 7-6 |