Serena Williams defeated Els Callens 7-6 7-6 in the Wimbledon round of 32 on grass. The result followed the form book — Serena Williams came in leading the head-to-head 2–0, defending last year's quarter-final. Serena Williams extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-06-23 | Wimbledon | R64 | grass | Serena Williams | 6-4 6-4 |
| 2003-01-13 | Australian Open | R64 | hard | Serena Williams | 6-4 6-0 |
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 10). ATP, WTA & Challenger.