
Jack Sock defeated Marin Cilic 5-7 6-2 7-6 in the Tour Finals round robin on hard. The result followed the form book — Jack Sock came in leading the head-to-head 2–0. Jack Sock extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-08-29 | US Open | R32 | hard | Jack Sock | 6-4 6-3 6-3 |
| 2016-07-15 | Davis Cup WG QF: USA vs CRO | RR | hard | Jack Sock | 4-6 3-6 6-3 6-4 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (199 vs 199). ATP, WTA & Challenger.