Juan Martin del Potro defeated Ivo Karlovic 6-4 6-7 6-3 7-5 in the Davis Cup WG F: ARG vs CRO round robin on hard. The result followed the form book — Juan Martin del Potro came in leading the head-to-head 4–1. Juan Martin del Potro extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-10-17 | Stockholm | QF | hard | Juan Martin del Potro | 6-3 6-4 |
| 2012-04-06 | Davis Cup WG QF: ARG vs CRO | RR | clay | Juan Martin del Potro | 6-2 7-6(7) 6-1 |
| 2012-03-21 | Miami Masters | R64 | hard | Juan Martin del Potro | 7-5 6-4 |
| 2011-05-22 | Roland Garros | R128 | clay | Juan Martin del Potro | 6-7(7) 6-3 7-5 6-4 |
| 2007-06-18 | Nottingham | QF | grass | Ivo Karlovic | 7-6(10) 7-5 |
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 (170 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About