Jack Sock defeated Jiri Vesely 7-6 3-6 7-6 in the Ilkley CH quarter-final on grass. The result followed the form book — Jack Sock came in leading the head-to-head 3–1. Jack Sock extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-05-29 | Roland Garros | R128 | clay | Jiri Vesely | 7-5 7-5 6-3 |
| 2017-05-15 | Rome Masters | R32 | clay | Jack Sock | 6-4 3-6 7-6 |
| 2017-03-20 | Miami Masters | R32 | hard | Jack Sock | 6-3 7-6 |
| 2014-02-10 | Memphis | R16 | hard | Jack Sock | 6-2 6-1 |
Averages over each player's completed matches in the selected window (60 vs 121). 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