Stan Wawrinka defeated Ivo Karlovic 4-6 6-3 6-4 in the Barcelona quarter-final on clay. The result followed the form book — Stan Wawrinka came in leading the head-to-head 4–2, defending last year's quarter-final. Stan Wawrinka extended the head-to-head to 5–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-26 | Basel | R32 | hard | Ivo Karlovic | 3-6 7-6(2) 6-4 |
| 2015-08-16 | Cincinnati Masters | R16 | hard | Stan Wawrinka | 6-7(2) 7-6(5) 7-6(5) |
| 2014-03-06 | Indian Wells Masters | R64 | hard | Stan Wawrinka | 6-3 7-5 |
| 2013-08-26 | US Open | R64 | hard | Stan Wawrinka | 7-5 7-6(8) 6-4 |
| 2007-06-18 | Nottingham | R32 | grass | Ivo Karlovic | 6-3 7-6(3) |
| 2006-06-26 | Wimbledon | R128 | grass | Stan Wawrinka | 7-6(5) 3-6 6-2 6-7(8) 11-9 |
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 (198 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Wawrinka S.: 12 days rest · 1 match (14d). Higher means fresher. About