Serena Williams defeated Karolina Pliskova 6-4 6-3 in the US Open quarter-final on hard. The upset overturned the form book — Karolina Pliskova came in leading the head-to-head 2–1, defending last year's quarter-final. Serena Williams narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-01-14 | Australian Open | QF | hard | Karolina Pliskova | 6-4 4-6 7-5 |
| 2016-08-29 | US Open | SF | hard | Karolina Pliskova | 6-2 7-6(5) |
| 2014-07-28 | Stanford | R16 | hard | Serena Williams | 7-5 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 (100 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Pliskova K.: 10 days rest · 2 matches (14d). Higher means fresher. About