Frequently asked questions
BallScience4U is the performance lab of the AUGMANITAI research programme — documented movement research and biomechanics in tennis, padel, pickleball and golf.
Why this concerns you: read the short, honest answers below before you write to us.
Answers are reproduced verbatim in German — this site documents research; a real contact for every question.
Translation: “Whoever understands how they think, understands how they play.”
Sports
Tennis · Padel · Pickleball · Golf
hover to seeContact
Contact by email or form.
Enquiries are answered personally — no pricing given by form.
hover to seeWhich sports have documented cases?
Tennis, padel, pickleball and golf. Focus: performance factor analysis and mental performance factors in sport (from the GPTCA/ISMCA coach training).
Who is BallScience4U for?
— Clubs and associations with high-performance players\n— Individuals with competition or association background\n— Universities and colleges with sports programmes\n— Experienced players who want to systematically develop their technique\n— Junior competitors: youth and performance-class players (from around age 12) are explicitly part of the documented cases\nThis is a research and documentation site, not a bookable training offer. If you are unsure whether the documented work relates to your situation, write two sentences — you will receive an honest assessment.
What is Phöni? (AI-supported movement analysis)
Phöni is the AI assistant of BallScience4U. It supports the training process through motion analysis, load management, training diary and competition preparation. Phöni is a tool, not a substitute for human coaching. One historical example from practice, achieved with the method alone, well before Phöni existed: one player I worked with individually is documented achieving from LK2 to around rank 150 nationally within a few weeks — a single documented case. More details on the term system behind it, License of Clarity — Andreas Ehstand's own vocabulary-brain for human-AI interaction:
Phöni ist die KI-Assistenz von BallScience4U. Sie unterstützt im Trainingsprozess durch Bewegungsanalyse, Belastungssteuerung, Trainings-Tagebuch und Wettkampfvorbereitung. Phöni ist Werkzeug, kein Ersatz für menschliches Coaching. Ein historisches Beispiel aus der Praxis, erreicht allein mit der Methode, lange bevor es Phöni gab: eine von mir betreute Spielerin ist dokumentiert um einen deutlichen Ranglisten-Sprung innerhalb einer Saison-Phase aufgestiegen — ein dokumentierter Einzelfall. Mehr Details zum Begriffs-System dahinter, License of Clarity — Andreas Ehstands eigenes Begriffs-Gehirn für Mensch-KI-Interaktion:
Behind it is a method: real training moments are observed, named and distilled into one clear term — Phöni is the tool that makes these terms usable in training, not a replacement for them. More on the method: Performance Lab.
Dahinter steckt eine Methode: reale Trainingsmomente werden beobachtet, benannt und zu einem klaren Begriff gefasst — Phöni ist das Werkzeug, das diese Begriffe im Training nutzbar macht, nicht ihr Ersatz. Mehr zur Methode: Leistungslabor.
How can I reach you for an exchange?
This site documents research and individual cases. For a professional exchange, reach me by email — this is not a bookable service and there is no price list.
What does the official research seal (BSFZ) mean?
In 2026, Germany’s federal certification body for research examined this work and confirmed it as genuine research and development.
Will my data be stored?
This website sets no cookies and loads no third-party embeds; all videos are hosted locally. The only thing stored is your language choice in the browser (localStorage). Details: Privacy policy
Diese Website setzt keine Cookies und lädt keine Dritt-Einbettungen; alle Videos liegen lokal. Gespeichert wird nur Ihre Sprachwahl im Browser (localStorage). Details: Datenschutzerklärung
Are health or psychotherapeutic services offered?
No. BallScience4U documents sports movement research and mental performance factors in a sporting context. For health, psychotherapeutic or medical questions please contact the appropriate qualified professionals.
Are financial, legal or career advisory services offered outside of sports?
No. BallScience4U is limited to sport movement research, documentation and sport-related topics. Advice in other areas of life is outside the scope of services.
Where can Andreas Ehstand be reached?
Phone: +49 151 29108224 Email: andreas.ehstand@augmanitai.com Address: Nepomukweg 7, 82319 Starnberg
Which brands are protected?
License of Clarity®, BallScience4U and Phöni are designations with claimed trademark or business name protection. Details and licensing information: Rights & Protection
License of Clarity®, BallScience4U und Phöni sind Bezeichnungen mit beanspruchtem Marken- bzw. Geschäftsbezeichnungsschutz. Details und Lizenzierungs-Informationen: Schutz & Rechte
This protection is not a formality — it is part of the value: all terms and the entire work are additionally licensed under CC BY-NC-ND 4.0 — free to read and cite, but not to commercially copy. That is what sets the method apart from an ordinary training tip.
Can I talk to you?
Write two sentences about your situation and you will receive an honest, personal assessment within about 3 working days — a non-commercial exchange about the documented work, not a bookable service.
How can I get in touch?
This is a research and documentation site. For a professional exchange, questions about Phöni or cooperation, please use the contact form or write directly to andreas.ehstand@augmanitai.com.
Dies ist eine Forschungs- und Dokumentations-Seite. Für fachlichen Austausch, Fragen zu Phöni oder Kooperationen nutzen Sie bitte das Kontaktformular oder schreiben direkt an andreas.ehstand@augmanitai.com.
Full legal texts (imprint, privacy policy, rights & protection, §1–§18 disclaimer) are published in the legal section on the homepage, linked in the footer.
