Head to head
0
Hard
1
2
Clay
0
Stefan Koubek's wins on the left · Hyung-Taik Lee's on the right · bar lengths share one scale
All meetings (3)
| 2004 | Doha | Hard | R16 | Hyung-Taik Lee | 6-4 6-4 |
| 2001 | Atlanta | Clay | QF | Stefan Koubek | 7-6(2) 6-7(5) 6-1 |
| 1999 | Bournemouth | Clay | R32 | Stefan Koubek | 6-4 7-6(4) |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.