Estefania Donnet defeated Sofia Luini 6-4 1-6 6-3 in the Buenos Aires 10K round of 16 on clay. The upset overturned the form book — Sofia Luini came in leading the head-to-head 1–0. Estefania Donnet claimed a first win over Sofia Luini in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-08-02 | Santa Cruz 10K | R32 | clay | Sofia Luini | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.