Peter Heller defeated Robin Stanek 6-3 6-4 in the Poland F1 round of 16 on clay.
Heller P. took it in straight sets.
Peter Heller beat Robin Stanek 6-3 6-4. Umpiry, "Peter Heller vs Robin Stanek — Poland F1 Round of 16", https://umpiry.com/match/2017-06-12/heller-vs-stanek-poland-f1-r16?utm_source=cite (as of 12 June 2017).