Roberta Vinci defeated Caroline Wozniacki 6-3 6-3 in the Madrid round of 32 on clay. The upset overturned the form book — Caroline Wozniacki came in leading the head-to-head 4–1, defending last year's round of 64. Roberta Vinci narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-10-03 | Beijing | R32 | hard | Caroline Wozniacki | 6-3 6-2 |
| 2015-08-24 | New Haven | R16 | hard | Caroline Wozniacki | 6-4 6-7(6) 7-6(7) |
| 2014-07-14 | Istanbul | F | clay | Caroline Wozniacki | 6-1 6-1 |
| 2012-10-29 | Tournament of Champions | RR | hard | Caroline Wozniacki | 6-3 6-1 |
| 2011-08-08 | Toronto | R32 | hard | Roberta Vinci | 6-4 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 (177 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About