David Ferrer defeated Jack Sock 7-6 3-6 6-1 in the Canada Masters round of 32 on hard. The upset overturned the form book — Jack Sock came in leading the head-to-head 2–1, defending last year's round of 16, but David Ferrer had been the form player, winning 3 of their last 5 on hard. David Ferrer narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-14 | Rome Masters | R64 | clay | Jack Sock | 6-3 6-4 |
| 2016-01-11 | Auckland | SF | hard | Jack Sock | 3-6 6-1 6-2 |
| 2013-10-14 | Stockholm | R16 | hard | David Ferrer | 4-6 6-3 6-1 |
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 (89 vs 199). ATP, WTA & Challenger.