Andy Roddick defeated Stefan Koubek 6-3 6-3 in the Canada Masters round of 16 on hard. The result followed the form book — Andy Roddick came in leading the head-to-head 3–0, defending last year's quarter-final. Andy Roddick extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-02-06 | Davis Cup WG R1: USA vs AUT | RR | hard | Andy Roddick | 6-4 6-4 6-2 |
| 2001-04-30 | Houston | QF | clay | Andy Roddick | 6-3 6-1 |
| 2001-04-23 | Atlanta | SF | hard | Andy Roddick | 6-2 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 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About