Jannik Koßmann plays beach volleyball for BeachL and competes in the federation “Volleyball-Verband Berlin”.
Currently listed in VMV Herren 2026 (rank 228, 20 points); Berlin Herren 2026 (rank 297, 36 points); VMV Herren Rotierend 2026 (rank 228, 20 points). 28 tournament results are documented since 2019, most of them in 2025 (8). Jannik has achieved 5 podium finishes, including 1 gold, 1 silver, 3 bronzes. Most recently documented: place 5 at Kategorie A (Jul 6, 2025). The best tournament result is place 1 at Landesmeisterschaft U19 (Jun 16, 2019). Most frequent partners in the results: Eric Paul Jahn (17×), Nicola Kössler (6×), Franz Godeck.