Peter Heller defeated Constantin Schmitz 6-3 5-7 6-1 in the M25 Wetzlar 1 quarter-final on clay.
Heller P. came through in three sets.
Peter Heller beat Constantin Schmitz 6-3 5-7 6-1. Umpiry, "Peter Heller vs Constantin Schmitz — M25 Wetzlar 1 Quarter-final", https://umpiry.com/match/2021-08-06/heller-vs-schmitz-m25-wetzlar-1-qf?utm_source=cite (as of 6 August 2021).