Andrea Koch Benvenuto defeated Adriana Perez 4-6 6-4 6-4 in the Santiago 10K round of 16 on clay. The upset overturned the form book — Adriana Perez came in leading the head-to-head 2–1. Andrea Koch Benvenuto narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-04-11 | Caracas 10K | SF | hard | Adriana Perez | 7-6(5) 6-2 |
| 2010-11-08 | Bogota 10K | R32 | clay | Andrea Koch Benvenuto | 6-2 2-6 6-1 |
| 2010-10-25 | Bogota 10K | QF | clay | Adriana Perez | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.