Mardy Fish defeated Ivo Karlovic 7-6 6-4 in the New Haven semi-final on hard. The upset overturned the form book — Ivo Karlovic came in leading the head-to-head 5–0, defending last year's round of 64. Mardy Fish claimed a first win over Ivo Karlovic in six meetings, narrowing the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-02-22 | Delray Beach | SF | hard | Ivo Karlovic | 6-2 6-3 |
| 2007-06-11 | Queen's Club | R64 | grass | Ivo Karlovic | 6-3 6-4 |
| 2007-02-12 | San Jose | QF | hard | Ivo Karlovic | 7-6 6-4 |
| 2005-08-29 | US Open | R128 | hard | Ivo Karlovic | 7-6 6-3 5-7 7-6 |
| 2004-01-19 | Australian Open | R128 | hard | Ivo Karlovic | 7-6 7-6 7-6 |
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