Barbara Rush defeated Liz Tatiane Koehler Bogarin 6-1 6-2 in the Itu 10K round of 32 on clay. The upset overturned the form book — Liz Tatiane Koehler Bogarin came in leading the head-to-head 1–0, but Barbara Rush had been the form player, winning 2 of their last 8 on clay. Barbara Rush claimed a first win over Liz Tatiane Koehler Bogarin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-10-18 | Santa Maria 10K | R16 | clay | Liz Tatiane Koehler Bogarin | 6-4 2-6 6-4 |