Christian Dethlefsen plays beach volleyball for 1. Beachclub Kiel and competes in the federation “Schleswig-Holsteinischer Volleyball-Verband”.
Currently listed in DVV Mixed DBM-Zulassung Herren 2026 (rank 96, 7 points); DVV Mixed Herren 2026 (rank 99, 7 points); SHVV Rangliste Mixed 2026 (rank 47, 150 points). 2 tournament results are documented from 2026. Most recently documented: place 7 at offenen Mixed-Landesmeisterschaften (Aug 16, 2026). Most frequent partners in the results: Nele Lorenzen (2×).