Daniel Cox defeated Jannis Kahlke 6-3 7-5 in the Qatar F2 round of 16 on hard.
Cox D. took it in straight sets.
Daniel Cox beat Jannis Kahlke 6-3 7-5. Umpiry, "Daniel Cox vs Jannis Kahlke — Qatar F2 Round of 16", https://umpiry.com/match/2016-04-11/cox-vs-kahlke-qatar-f2-r16?utm_source=cite (as of 11 April 2016).