Dominika Cibulkova defeated Sloane Stephens 6-3 6-4 in the Toronto round of 64 on hard. The upset overturned the form book — Sloane Stephens came in leading the head-to-head 3–1. Dominika Cibulkova narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-10-01 | Beijing | R16 | hard | Dominika Cibulkova | 4-6 6-2 6-3 |
| 2017-08-28 | US Open | R64 | hard | Sloane Stephens | 6-2 5-7 6-3 |
| 2016-02-22 | Acapulco | F | hard | Sloane Stephens | 6-4 4-6 7-6(5) |
| 2012-12-31 | Brisbane | R32 | hard | Sloane Stephens | 6-2 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 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About