Mario Ancic defeated Ivo Heuberger 4-6 6-1 6-0 in the Doha qualifying round of 32 on hard. The upset overturned the form book — Ivo Heuberger came in leading the head-to-head 1–0, defending last year's round of 32. Mario Ancic claimed a first win over Ivo Heuberger in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-07-21 | Indianapolis | R32 | hard | Ivo Heuberger | 6-3 2-6 7-5 |
Averages over each player's completed matches in the selected window (200 vs 74). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About