
Marin Cilic defeated Juan Martin del Potro 6-3 6-4 in the Canada Masters round of 32 on hard. The upset overturned the form book — Juan Martin del Potro came in leading the head-to-head 11–1. Marin Cilic narrowed the head-to-head to 11–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-28 | Roland Garros | QF | clay | Juan Martin del Potro | 7-6(5) 5-7 6-3 7-5 |
| 2017-10-23 | Basel | SF | hard | Juan Martin del Potro | 6-4 6-4 |
| 2016-11-25 | Davis Cup WG F: ARG vs CRO | RR | hard | Juan Martin del Potro | 6-7(4) 2-6 7-5 6-4 6-3 |
| 2013-10-28 | Paris Masters | R32 | hard | Juan Martin del Potro | 6-4 7-6(3) |
| 2012-05-27 | Roland Garros | R32 | clay | Juan Martin del Potro | 6-3 7-6(7) 6-1 |
| 2012-05-06 | Madrid Masters | R16 | clay | Juan Martin del Potro | 6-2 6-4 |
| 2012-04-06 | Davis Cup WG QF: ARG vs CRO | RR | clay | Juan Martin del Potro | 6-1 6-2 6-1 |
| 2012-03-21 | Miami Masters | R32 | hard | Juan Martin del Potro | 6-3 7-6(3) |
| 2011-05-01 | Madrid Masters | R32 | clay | Juan Martin del Potro | 6-3 6-0 |
| 2010-01-18 | Australian Open | R16 | hard | Marin Cilic | 5-7 6-4 7-5 5-7 6-3 |
| 2009-08-31 | US Open | QF | hard | Juan Martin del Potro | 4-6 6-3 6-2 6-1 |
| 2009-01-19 | Australian Open | R16 | hard | Juan Martin del Potro | 5-7 6-4 6-4 6-2 |
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
Cilic M.: 12 days rest · 1 match (14d). Higher means fresher. About