Alberto Martin defeated Stefan Koubek 6-4 6-4 in the Auckland round of 32 on hard. The upset overturned the form book — Stefan Koubek came in leading the head-to-head 3–0, defending last year's quarter-final. Alberto Martin claimed a first win over Stefan Koubek in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-11 | Vienna | R32 | hard | Stefan Koubek | 7-5 6-1 |
| 2004-03-22 | Miami Masters | R128 | hard | Stefan Koubek | 2-6 7-6(3) 6-0 |
| 1999-04-26 | Atlanta | QF | hard | Stefan Koubek | 7-5 6-2 |
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 170). ATP, WTA & Challenger.