Giovanna Tomita defeated Guadalupe Perez Rojas 6-4 7-6 in the Quito 10K round of 32 on clay. The upset overturned the form book — Guadalupe Perez Rojas came in leading the head-to-head 4–0. Giovanna Tomita claimed a first win over Guadalupe Perez Rojas in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-04-27 | Villa del Dique $10K | R32 | clay | Guadalupe Perez Rojas | 7-5 6-1 |
| 2015-03-23 | Sao Jose do Rio Preto $10K | R16 | clay | Guadalupe Perez Rojas | 6-1 6-4 |
| 2015-03-16 | Ribeirao Preto $10K | R16 | clay | Guadalupe Perez Rojas | 6-0 6-1 |
| 2011-09-12 | Sao Jose Dos Campos 10K | R32 | clay | Guadalupe Perez Rojas | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.