Severin Kleinert plays beach volleyball for SG Erfurt Electronic and competes in the federation “Thüringer Volleyball-Verband”.
Currently listed in TVV Jugend Männer 2026 (rank 155, 6 points); TVV Erwachsene Mixed 2026 (rank 230, 4 points); TVV Erwachsene Männer 2026 (rank 231, 5 points).