Serena Williams defeated Caroline Wozniacki 6-1 6-4 in the Beijing quarter-final on hard. The result followed the form book — Serena Williams came in leading the head-to-head 9–1. Serena Williams extended the head-to-head to 10–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-10-20 | WTA Finals | SF | hard | Serena Williams | 2-6 6-3 7-6(6) |
| 2014-08-25 | US Open | F | hard | Serena Williams | 6-3 6-3 |
| 2014-08-11 | Cincinnati | SF | hard | Serena Williams | 2-6 6-2 6-4 |
| 2014-08-04 | Montreal | QF | hard | Serena Williams | 4-6 7-5 7-5 |
| 2012-07-30 | Olympics | QF | hard | Serena Williams | 6-0 6-3 |
| 2012-05-07 | Madrid | R16 | clay | Serena Williams | 1-6 6-3 6-2 |
| 2012-03-19 | Miami | QF | hard | Caroline Wozniacki | 6-4 6-4 |
| 2011-08-29 | US Open | SF | hard | Serena Williams | 6-2 6-4 |
| 2009-10-26 | WTA Tour Championships | SF | carpet | Serena Williams | 6-4 0-1 RET |
| 2009-01-12 | Sydney | QF | hard | Serena Williams | 6-7(5) 6-3 7-6(3) |
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 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About