Nicole Gibbs defeated Kiki Bertens 6-4 6-1 in the Stanford round of 32 on hard. The upset overturned the form book — Kiki Bertens came in leading the head-to-head 1–0, but Nicole Gibbs had been the form player, winning 1 of their last 4 on hard. Nicole Gibbs claimed a first win over Kiki Bertens in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-01-15 | Australian Open | R64 | hard | Kiki Bertens | 7-6(3) 6-0 |
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 (178 vs 198). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About