Jonathan Markus plays beach volleyball and competes in the federation “Deutscher Volleyball-Verband”.
Currently listed in DVV Mixed DBM-Zulassung Herren 2026 (rank 193, 3 points); DVV Mixed Herren 2026 (rank 194, 3 points). 1 tournament result is documented from 2026. Most recently documented: place 5 at offenen Mixed-Turniere der Landesverbände (Sep 6, 2026). Most frequent partners in the results: Sina Stöckmann.