Mikhail Kukushkin defeated Stefan Koubek 6-2 6-4 in the Doha qualifying round on hard.
Kukushkin M. took it in straight sets.
Kukushkin M. and Koubek S. faced 1 of the same opponent in the last 12 months. Kukushkin M. went 1–0 (100%) against them, Koubek S. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Mikhail Kukushkin beat Stefan Koubek 6-2 6-4. Umpiry, "Mikhail Kukushkin vs Stefan Koubek — Doha Qualifying Round", https://umpiry.com/match/2010-01-04/koubek-vs-kukushkin-doha-qf?utm_source=cite (as of 4 January 2010).