
Marin Cilic defeated Marius Copil 7-6 7-6 in the Washington round of 32 on hard. The upset overturned the form book — Marius Copil came in defending last year's round of 16. Marin Cilic extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-10-22 | Basel | R16 | hard | Marius Copil | 7-5 7-6(2) |
| 2018-08-27 | US Open | R128 | hard | Marin Cilic | 7-5 6-1 1-1 RET |
| 2018-08-13 | Cincinnati Masters | R32 | hard | Marin Cilic | 6-7(4) 6-4 6-4 |
| 2012-10-01 | Beijing | R32 | hard | Marius Copil | 3-6 7-6(0) 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 200). ATP, WTA & Challenger.