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    4.9/5Google    10,000+ players trained20+ years of experienceNTC Amstelveen
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    Coach Development

    Coach development and the 359.coach certification

    At 359.tennis, a KNLTB diploma is the foundation, but not the endpoint. Every coach completes an internal certification pathway — the 359.coach certification — the development and quality system that ensures the 359 Method is applied consistently and correctly.

    359.tennis Coaching Team
    By 359.tennis Coaching Team · Gediplomeerd coachteam · NTC / TV De Kegel
    Last reviewed on 10 March 2026

    This article describes the 359.coach certification programme — an internal training pathway at three levels (Basic, Advanced, Expert) that ensures every coach correctly applies the 359 Method.

    Why a proprietary certification?

    A tennis diploma teaches you to hit balls. But the 359 Method goes further: it integrates athletic, social and personal development into every lesson. To do this consistently, coaches must be specifically trained in our methodology, lesson structure and pedagogical approach.

    Level 1: Basic (Minimum)

    Every new coach starts here. Level 1 covers:

    • Knowledge of the 359 Development System and three pillars: Fit · Fun · Focus™
    • The 359 Operating System — the fixed lesson structure in 5 phases
    • Fundamentals of game-based learning and differentiation
    • Theory exam + practical on-court assessment

    Level 2: Advanced

    After at least one season of experience as a 359.coach, a coach can progress to Level 2:

    • In-depth understanding of the 359 Progress System
    • Competence in parent guidance and parent communication
    • Tactical and mental coaching for juniors and competitive players
    • Extended practical exam with video analysis

    Level 3: Expert / Mentor

    Level 3 coaches are the senior coaches and mentors within the team:

    • Responsible for guiding Level 1 and 2 coaches
    • Contributing to the further development of the 359 Method
    • Specialisation in high-performance coaching or pedagogical innovation
    • Annual recertification and professional development required

    Continuous learning

    Certification is not an endpoint. All coaches complete annual professional development — internally through workshops and externally through KNLTB training. This keeps lesson quality at 359.tennis consistent at a high level.

    Want to know more about our coach education? Visit the 359.coach Education page or discover how to become a 359.coach.

    Frequently asked questions about 359 coach training

    Want to apply these insights in practice?

    Discover the Coach SystemBecome a 359.coach
    Testimonials

    What Our Players Say

    Read experiences from players and parents who train at 359.tennis.

    4.9/ 5 stars · based on player & parent reviews
    Rate us on Google
    We started at 359.tennis as complete beginners. We wanted to learn tennis and have a regular weekly family activity. Now we take family group lessons together, and our daughter also trains in her own group. The best part is that it's not just a fun sport, but it truly strengthens our family bond.

    Familie Nakamura

    Familiegroepsles — samen als gezin tennissen

    We organised a corporate sports day at 359 for 60 colleagues. The team handled everything from catering coordination to grouping people by skill level. Even colleagues who had never held a racket had a fantastic time. The feedback was overwhelmingly positive.

    Sophie Laurent

    HR Manager — Booking.com

    For over 10 years, we've been taking tennis lessons at 359.tennis and playing Saturday afternoon competition at TV De Kegel. We're a fun group of friends in the 50+ category. It's wonderful to be socially and athletically active together. The combination of lessons and competition truly keeps us together as a team.

    Petra Versluys

    Volwassenen — competitieteam zaterdagmiddag

    View all reviews on Google

    Facts about 359.tennis

    Verifiable facts that distinguish 359.tennis as a professional tennis academy in the Amsterdam region.

    • Our coaches are nationally or internationally qualified (e.g. KNLTB, ITF, PTA, PTR) and engage in continuous development through the 359 Coach approach.
    • 359.tennis operates on 12 indoor and 14 outdoor courts at the National Tennis Centre (NTC) in Amstelveen — one of the largest and most professional tennis centres in the Netherlands.
    • Founded in 2005, with over 20+ years of continuous experience in professional tennis coaching.
    • Over 10.000+ players trained since founding — from complete beginners to competitive tournament players.
    • The 359 Method is a proprietary development model based on the Fit · Fun · Focus™ principle, focused on both athletic and personal growth.
    • Accessible from 15 municipalities including Amsterdam, Amstelveen, Amsterdam-Zuid, Hoofddorp, Aalsmeer and Uithoorn.