Sara Errani defeated Angelique Kerber 6-3 7-6 in the Roland Garros quarter-final on clay. The upset overturned the form book — Angelique Kerber came in leading the head-to-head 2–1, defending last year's round of 128. Sara Errani narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-02-19 | Dubai | R16 | hard | Angelique Kerber | 6-4 6-2 |
| 2012-08-27 | US Open | R16 | hard | Sara Errani | 7-6(5) 6-3 |
| 2012-01-09 | Hobart | R16 | hard | Angelique Kerber | 6-1 6-2 |
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 (200 vs 198). ATP, WTA & Challenger.