Sandro Kopp defeated Hans Peter Kaufmann 6-1 6-2 in the M25 Vogau 1 qualifying round of 32 on clay.
Kopp S. took it in straight sets.
Sandro Kopp beat Hans Peter Kaufmann 6-1 6-2. Umpiry, "Sandro Kopp vs Hans Peter Kaufmann — M25 Vogau 1 Qualifying Round of 32", https://umpiry.com/match/2019-08-05/kaufmann-vs-kopp-m25-vogau-1-q32?utm_source=cite (as of 5 August 2019).