Angelique Kerber defeated Roberta Vinci 6-2 6-3 in the Stuttgart round of 32 on clay. The upset overturned the form book — Roberta Vinci came in defending last year's round of 32, but Angelique Kerber had been the form player, winning 3 of their last 5 on clay. Angelique Kerber extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-08-29 | US Open | QF | hard | Angelique Kerber | 7-5 6-0 |
| 2013-09-30 | Beijing | R16 | hard | Angelique Kerber | 6-2 6-4 |
| 2013-02-18 | Dubai | R16 | hard | Roberta Vinci | 7-5 6-1 |
| 2012-08-06 | Montreal | R16 | hard | Roberta Vinci | 6-2 7-6(7) |
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 (198 vs 200). ATP, WTA & Challenger.