Jurgen Zopp defeated Christopher Heyman 2-6 6-3 6-3 in the Germany F8 qualifying round on clay.
Zopp J. came through in three sets.
Jurgen Zopp beat Christopher Heyman 2-6 6-3 6-3. Umpiry, "Jurgen Zopp vs Christopher Heyman — Germany F8 Qualifying Round", https://umpiry.com/match/2017-07-17/heyman-vs-zopp-germany-f8-qf?utm_source=cite (as of 17 July 2017).