Karlo Cupeljic plays beach volleyball for ASV Dachau and competes in the federation “Bayerischer Volleyball-Verband”.
Currently listed in BVV U16 Herren 2025 (rank 9, 523 points); BVV U18 Herren 2026 (rank 27, 596 points); BVV Race to BMS Herren 2026 (rank 134, 79 points). Ranking seasons: 2025–2026.