Bastian Knittel defeated Mischa Zverev 6-4 6-2 in the US Open qualifying round of 128 on hard.
Knittel B. took it in straight sets.
Knittel B. and Zverev M. faced 1 of the same opponent in the last 12 months. Knittel B. went 1–0 (100%) against them, Zverev M. 0–1 (0%).
Only 1 common opponent — too few for any conclusion. Shown without assessment.
Bastian Knittel beat Mischa Zverev 6-4 6-2. Umpiry, "Bastian Knittel vs Mischa Zverev — US Open Qualifying Round of 128", https://umpiry.com/match/2011-08-24/knittel-vs-zverev-us-open-q128?utm_source=cite (as of 24 August 2011).