Ivo Karlovic defeated Jurgen Melzer 7-6 7-5 6-3 in the Australian Open round of 128 on hard. The upset overturned the form book — Jurgen Melzer came in leading the head-to-head 4–1, defending last year's round of 16, but Ivo Karlovic had been the form player, winning 2 of their last 4 on hard. Ivo Karlovic narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-10-13 | Vienna | R16 | hard | Ivo Karlovic | 6-4 7-6(1) |
| 2007-08-13 | Cincinnati Masters | R64 | hard | Jurgen Melzer | 7-6(4) 7-6(2) |
| 2007-01-15 | Australian Open | R128 | hard | Jurgen Melzer | 6-4 6-4 7-6(6) |
| 2006-05-01 | Munich | QF | clay | Jurgen Melzer | 7-6(4) 6-1 |
| 2004-03-22 | Miami Masters | R128 | hard | Jurgen Melzer | 6-4 6-4 |
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