Rik De Voest defeated Stefan Koubek 6-4 6-4 in the US Open qualifying round of 64 on hard.
De Voest R. took it in straight sets.
De Voest R. and Koubek S. faced 1 of the same opponent in the last 12 months. De Voest R. went 1–0 (100%) against them, Koubek S. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Rik De Voest beat Stefan Koubek 6-4 6-4. Umpiry, "Rik De Voest vs Stefan Koubek — US Open Qualifying Round of 64", https://umpiry.com/match/2010-08-26/koubek-vs-voest-us-open-q64?utm_source=cite (as of 26 August 2010).