Pavel Krainik defeated Hunter Callahan 2-6 6-4 6-3 in the Canada F5 round of 32 on clay. The upset overturned the form book — Hunter Callahan came in leading the head-to-head 1–0. Pavel Krainik claimed a first win over Hunter Callahan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-04-25 | Greece F6 | Q16 | hard | Hunter Callahan | 3-6 7-5 6-3 |
Averages over each player's completed matches in the selected window (81 vs 38). 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