Christina Mchale defeated Petra Martic 7-6 5-7 6-4 in the Miami q64 on hard. The upset overturned the form book — Petra Martic came in leading the head-to-head 2–1, defending last year's round of 64. Christina Mchale narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-01-20 | Australian Open | R128 | hard | Petra Martic | 6-3 6-0 |
| 2017-08-12 | Cincinnati | Q64 | hard | Petra Martic | 1-6 6-3 6-2 |
| 2014-08-02 | Montreal | Q64 | hard | Christina Mchale | 6-1 6-3 |
Averages over each player's completed matches in the selected window (67 vs 187). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About