Serena Williams defeated Ai Sugiyama 7-5 6-3 in the Roland Garros round of 16 on clay. The result followed the form book — Serena Williams came in leading the head-to-head 3–0, defending the title. Serena Williams extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-08-25 | US Open | R32 | hard | Serena Williams | 6-2 6-1 |
| 2000-03-20 | Miami | R32 | hard | Serena Williams | 6-3 6-0 |
| 1998-06-15 | Eastbourne | R16 | grass | Serena Williams | 6-2 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 171). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About