Roger Federer defeated Ivo Karlovic 6-4 6-4 in the Rome Masters round of 32 on clay. The result followed the form book — Roger Federer came in leading the head-to-head 12–1, defending last year's quarter-final. Roger Federer extended the head-to-head to 13–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-06-15 | Halle | SF | grass | Roger Federer | 7-6(3) 7-6(4) |
| 2014-10-20 | Basel | SF | hard | Roger Federer | 7-6(8) 3-6 6-3 |
| 2014-03-19 | Miami Masters | R64 | hard | Roger Federer | 6-4 7-6(4) |
| 2012-01-16 | Australian Open | R32 | hard | Roger Federer | 7-6(6) 7-5 6-3 |
| 2009-06-22 | Wimbledon | QF | grass | Roger Federer | 6-3 7-5 7-6(3) |
| 2009-03-12 | Indian Wells Masters | R32 | hard | Roger Federer | 7-6(4) 6-3 |
| 2008-07-28 | Cincinnati Masters | R16 | hard | Ivo Karlovic | 7-6(6) 4-6 7-6(5) |
| 2008-05-05 | Rome Masters | R16 | clay | Roger Federer | 7-6(4) 6-3 |
| 2007-10-28 | Paris Masters | R32 | hard | Roger Federer | 6-3 4-6 6-3 |
| 2007-10-22 | Basel | SF | hard | Roger Federer | 7-6(6) 7-6(5) |
| 2007-08-05 | Canada Masters | R32 | hard | Roger Federer | 7-6(2) 7-6(3) |
| 2004-07-05 | Gstaad | R16 | clay | Roger Federer | 6-7(5) 6-3 7-6(4) |
| 2004-06-21 | Wimbledon | R16 | grass | Roger Federer | 6-3 7-6(3) 7-6(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 (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About