Dennis Novak defeated Wesley Koolhof 7-5 6-3 in the Halle qualifying round of 32 on grass.
Novak D. took it in straight sets.
Dennis Novak beat Wesley Koolhof 7-5 6-3. Umpiry, "Dennis Novak vs Wesley Koolhof — Halle Qualifying Round of 32", https://umpiry.com/match/2013-06-08/koolhof-vs-novak-halle-q32?utm_source=cite (as of 8 June 2013).