Ivo Karlovic defeated Mario Ancic 6-4 7-6 in the London qualifying round of 16 on carpet. The upset overturned the form book — Mario Ancic came in leading the head-to-head 3–1. Ivo Karlovic narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-01-19 | Australian Open | R64 | hard | Mario Ancic | 5-7 7-5 4-6 6-4 6-3 |
| 2006-01-30 | Zagreb | R16 | hard | Ivo Karlovic | 7-6 7-6 |
| 2003-10-20 | Stockholm | R32 | hard | Mario Ancic | 6-3 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 (200 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