https://ballscience4u.de/coaches.html https://ballscience4u.de/media/sport-feuerschweif-poster.jpg Coach · Andreas Ehstand — Qualifications & Background | BallScience4U Andreas Ehstand — coach, author and sport scientist. GPTCA/ISMCA mental coach training, co-author „Faszination Padel“, 25 years of international coaching. https://ballscience4u.de/media/sport-feuerschweif.mp4 10 2026-07-19T00:00:00+00:00 yes no no https://ballscience4u.de/ https://ballscience4u.de/media/sport-padelcourt-poster.jpg BallScience4U · Andreas Ehstand — Movement Research & Biomechanics in Sport · Tennis Padel Picklebal Andreas Ehstand's documented lab for movement and biomechanics in tennis, padel, pickleball and golf — with motion analysis and the Phöni AI assistant. https://ballscience4u.de/media/sport-padelcourt.mp4 4 2026-07-15T00:00:00+00:00 yes no no https://ballscience4u.de/performance-labor.html https://ballscience4u.de/media/sport-feuerschweif-poster.jpg Performance Lab · Biomechanics & AI Motion Analysis — BallScience4U · Andreas Ehstand The BallScience4U Performance Lab: biomechanics, performance-factor analysis and the Phöni AI assistant in practice — with one documented coaching result. https://ballscience4u.de/media/sport-feuerschweif.mp4 10 2026-07-19T00:00:00+00:00 yes no no