Jack Sock defeated Guido Pella 7-6 7-5 in the Shanghai Masters round of 64 on hard. The result followed the form book — Jack Sock came in leading the head-to-head 2–0, defending last year's round of 32. Jack Sock extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-05-09 | Rome Masters | R64 | clay | Jack Sock | 5-7 7-5 6-3 |
| 2014-03-19 | Miami Masters | R128 | hard | Jack Sock | 6-3 6-4 |
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.