Stefan Wienströer plays beach volleyball for FC St. Pauli and competes in the federation “Hamburger Volleyball-Verband”.
Currently listed in Hamburg Herren 2026 (rank 114, 276 points). 6 tournament results are documented since 2024, most of them in 2025 (4). Most recently documented: place 9 at Sonstige (Aug 9, 2025). The best tournament result is place 5 at Sonstige (Aug 2, 2025). Most frequent partners in the results: Levan Tsatsiashvili (3×), Søren Godsk Terkelsen.