Serena Williams defeated Maria Jose Martinez Sanchez 4-6 6-3 6-4 in the Roland Garros round of 32 on clay. The result followed the form book — Serena Williams came in leading the head-to-head 3–0, defending last year's round of 32. Serena Williams extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-08-27 | US Open | R64 | hard | Serena Williams | 6-2 6-4 |
| 2010-01-11 | Sydney | R16 | hard | Serena Williams | 6-1 6-2 |
| 2009-08-31 | US Open | R32 | hard | Serena Williams | 6-3 7-5 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (199 vs 141). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About