Carla Tiene defeated Fernanda Hermenegildo 6-2 6-2 in the Buenos Aires 10K round of 32 on clay. The upset overturned the form book — Fernanda Hermenegildo came in leading the head-to-head 2–1, but Carla Tiene had been the form player, winning 3 of their last 5 on clay. Carla Tiene narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-10-06 | Mogi Das Cruzes 10K | QF | clay | Fernanda Hermenegildo | 7-5 2-6 6-4 |
| 2008-09-08 | Santos 10K | QF | clay | Fernanda Hermenegildo | 6-3 6-3 |
| 2003-11-24 | Florianopolis 10K | R16 | clay | Carla Tiene | 6-1 6-0 |