Mario Ancic defeated Ivo Karlovic 5-7 7-5 4-6 6-4 6-3 in the Australian Open round of 64 on hard. The upset overturned the form book — Ivo Karlovic came in defending last year's round of 32. Mario Ancic extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-01-30 | Zagreb | R16 | hard | Ivo Karlovic | 7-6 7-6 |
| 2003-10-20 | Stockholm | R32 | hard | Mario Ancic | 6-3 6-2 |
| 2002-06-10 | London | Q16 | carpet | Ivo Karlovic | 6-4 7-6(2) |
| 2000-02-19 | Croatia F2 | F | hard | Mario Ancic | 7-6(14) 6-4 |
Averages over each player's completed matches in the selected window (24 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About