Tatiana Bua defeated Bianca Botto 6-2 6-3 in the Buenos Aires 10K round of 16 on clay. The upset overturned the form book — Bianca Botto came in leading the head-to-head 3–0. Tatiana Bua claimed a first win over Bianca Botto in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-18 | Santos 25K | R16 | clay | Bianca Botto | 6-1 6-2 |
| 2009-03-30 | Lima 10K | QF | clay | Bianca Botto | 6-2 6-3 |
| 2008-10-27 | Lima 10K | R16 | clay | Bianca Botto | 6-2 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.