
Marin Cilic defeated Ryan Harrison 6-3 6-4 in the Delray Beach round of 16 on hard. The result followed the form book — Marin Cilic came in leading the head-to-head 6–1. Marin Cilic extended the head-to-head to 7–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-14 | Rome Masters | R32 | clay | Marin Cilic | 6-7(3) 6-1 7-6(1) |
| 2018-01-15 | Australian Open | R32 | hard | Marin Cilic | 7-6(4) 6-3 7-6(4) |
| 2017-10-02 | Tokyo | QF | hard | Marin Cilic | 6-2 6-0 |
| 2017-05-15 | Rome Masters | R32 | clay | Marin Cilic | 6-3 6-2 |
| 2016-03-07 | Indian Wells Masters | R64 | hard | Marin Cilic | 6-4 6-3 |
| 2016-02-22 | Acapulco | R32 | hard | Ryan Harrison | 6-3 3-6 6-2 |
| 2011-08-29 | US Open | R128 | hard | Marin Cilic | 6-2 7-5 7-6(6) |
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.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About