Tatiana Bua defeated Andrea Koch Benvenuto 7-5 6-4 in the Santiago 10K round of 16 on clay. The upset overturned the form book — Andrea Koch Benvenuto came in leading the head-to-head 1–0. Tatiana Bua claimed a first win over Andrea Koch Benvenuto in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-02-14 | Buenos Aires 10K | R16 | clay | Andrea Koch Benvenuto | 7-6(5) 4-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.