Gregor Rosendahl plays beach volleyball for SV Bad Laer and competes in the federation “Nordwestdeutscher Volleyball-Verband”.
Currently listed in NWVV U19 männlich 2026 (rank 133, 102 points); NWVV U18 männlich (E) 2026 (rank 231, 6 points); NWVV Erwachsene Männer 2026 (rank 730, 102 points).