Jack Sock defeated Jeremy Chardy 6-4 6-4 in the Stockholm round of 16 on hard. The result followed the form book — Jack Sock came in leading the head-to-head 2–0, defending last year's final. Jack Sock extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-01-09 | Auckland | QF | hard | Jack Sock | 5-7 6-4 6-3 |
| 2014-10-13 | Stockholm | R16 | hard | Jack Sock | 7-6(3) 6-3 |
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.