Stefan Koubek defeated Hyung Taik Lee 7-6 6-7 6-1 in the Atlanta quarter-final on hard. The result followed the form book — Stefan Koubek came in defending last year's quarter-final. Stefan Koubek extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-01-05 | Doha | R16 | hard | Hyung Taik Lee | 6-4 6-4 |
| 1999-09-13 | Bournemouth | R32 | clay | Stefan Koubek | 6-4 7-6(4) |
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.