Gonzalo Lama defeated Hunter Callahan 6-4 0-6 7-6 in the USA F20 round of 32 on clay. The result followed the form book — Gonzalo Lama came in leading the head-to-head 1–0. Gonzalo Lama extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-26 | USA F22 | R16 | clay | Gonzalo Lama | 4-6 7-6(3) 6-4 |
Averages over each player's completed matches in the selected window (200 vs 3). 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