Beren Tan defeated Claus Piening 6-4 6-4 in the M15 Lodz qualifying round of 32 on clay.
Tan B. took it in straight sets.
Beren Tan beat Claus Piening 6-4 6-4. Umpiry, "Beren Tan vs Claus Piening — M15 Lodz Qualifying Round of 32", https://umpiry.com/match/2026-07-06/piening-vs-tan-m15-lodz-q32?utm_source=cite (as of 6 July 2026).