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 and sells nothing; 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 (GPTCA/ISMCA framework) (recognised international coaching standards).
Who is BallScience4U for?
— Clubs and associations looking for structured coaching for their 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\nBeginner coaching is possible in individual cases, but not the focus.
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: Julia Wagner is documented rising from performance class LK2 to DTB 150 over about six 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: Julia Wagner ist dokumentiert von Leistungsklasse LK2 auf DTB 150 in rund sechs Wochen 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.
Will my data be stored?
This website only sets technically necessary cookies. Embedded content (videos, maps) is only loaded once you expressly consent. This site offers no bookable services; it documents research and individual cases. Details: Privacy policy
This website only sets technically necessary cookies. Embedded content (videos, maps) is only loaded once you expressly consent. This site offers no bookable services; it documents research and individual cases. Details: Privacy policy
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, the methodology and the entire work is 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?
For clubs, federations and academies: an initial conversation is always possible — describe your needs and I will personally reply within about 3 working days.
How can I get in touch?
Contact starts soon — currently no booking possible. A renewed booking option will be announced on this page. For advance enquiries, demo appointments for Phöni or cooperation requests 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.
