Greta Maier plays beach volleyball for TV Planegg-Krailling and competes in the federation “Bayerischer Volleyball-Verband”.
Currently listed in BVV U14 Damen 2025 (rank 54, 145 points); BVV U16 Damen 2026 (rank 126, 116 points); BVV U18 Damen 2026 (rank 224, 52 points). Ranking seasons: 2025–2026.