Jonathan Grasnick plays beach volleyball for TSV Herrsching and competes in the federation “Bayerischer Volleyball-Verband”.
Currently listed in BVV U18 Herren 2026 (rank 11, 1.044 points); BVV Herren 2026 (rank 211, 45 points); BVV Race to BMS Herren 2026 (rank 268, 19 points). Ranking seasons: 2025–2026.