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    Youth & Adults · Summer 2026

    Use the holiday to make visible progress in your tennis.

    359 training weeks give players more rhythm, repetition and targeted coaching than a regular lesson week.

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    4.9/5Google
    20+ years experience530+ registrations this seasonNTC Amstelveen

    359.tennis organises intensive training weeks during summer holidays at NTC Amstelveen, near Amsterdam. Daily 2-hour sessions for juniors (orange, green) and adults, focusing on technique, tactics, and mental development.

    Intensive training during the summer holidays

    Register online today for a unique training day or for a full week. We have a limited capacity per day and per age group.

    Daily 2-hour training
    Max 16 players per session
    Experienced High Performance coaches
    NTC de Kegel Amstelveen
    Thematic training sessions
    For youth and adults
    Schedule

    When?

    The Training Weeks take place in the first and last week of the summer holidays 2026.

    Week 1

    First week of summer holidays

    Week 2

    Last week of summer holidays

    Target Groups & Times

    Who is it for?

    The training week is available for four levels. Select your level to register directly.

    Orange

    11:00 – 13:00

    Players at orange level. Learn the basics of rallying, serving and scoring in a challenging environment.

    Green

    11:00 – 13:00 / 14:00 – 16:00

    Players at green level. Work on tactics, consistency and match play on the larger court.

    Yellow

    14:00 – 16:00

    Players on yellow (regular) ball. Refine your technique, tactics and mental resilience at competition level.

    Adults

    19:00 – 21:00

    Adult players level 9, 8, 7 and 6. Intensive training focused on technique, tactics and match play formats.

    Content

    What to expect?

    Each training session has a theme and includes the following components:

    Tennis technique
    Tactics
    Physical fitness
    Mental training
    Match play
    Pricing

    Costs

    Book a full training week or choose a single training day.

    € 206,-

    Per training week

    • 5 days × 2 hours training
    • Professional coaching

    € 44,-

    Per training day

    Book a single day

    • 1 day × 2 hours training
    • Ideal to try out

    Location

    NTC de Kegel Amstelveen

    Bovenkerkerweg 81 · 1187 XC Amstelveen

    Our Strengths

    Why 359.tennis?

    For over 20 years, we have been developing tennis players of all ages and levels with our proven approach.

    20+ years experience

    Proven expertise in tennis education at every level.

    10,000+ players trained

    From beginners to national youth top players.

    Certified coaches

    Exclusively certified tennis instructors.

    The 359 Development System

    Our proven approach with Fit, Fun and Focus — developed into the 359 Progress System.

    Tailored training

    Training adapted to level, goals, and preferences.

    People-focused

    Lessons are fun, educational, and intensive.

    Progress. Not Perfection.

    Your development as a tennis player and as a person.

    Please note: From April to October, non-members can take lessons on indoor courts only. Outdoor courts are reserved for TV De Kegel members during this period.

    Frequently asked questions

    About the training weeks

    What is a training week at 359.tennis?
    A training week is an intensive 5-day tennis program during the summer holidays at NTC Amstelveen. Participants train 2 hours daily on technique, tactics, and mental aspects.
    Who are the training weeks for?
    Training weeks are available for youth and adults at all levels, from beginners to advanced competitive players.
    How many hours per day is the training?
    Participants train 2 hours daily under guidance of KNLTB-certified coaches.
    Are the training weeks indoor or outdoor?
    Training weeks take place at NTC Amstelveen, with both indoor and outdoor courts available depending on weather conditions.
    Can I join as a beginner?
    Yes, training weeks are suitable for all levels. You will be placed in a group that matches your level and age. See our full program overview.
    How much does a training week cost?
    The investment for a training week is 206 euro per participant. This includes 5 days of professional coaching at NTC Amstelveen.
    Do I need to bring my own racket?
    During group lessons, free loaner rackets are available for all START groups and all RED level groups. For intermediate and advanced players, we recommend bringing your own racket suited to your level.
    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 have three children playing tennis at 359 — ages 6 to 14. Each child has their own path and coach. What connects us is Sunday afternoon family tennis. It's become our family moment.

    Robert & Anne-Marie Jansen

    Ouders van drie tennissende kinderen

    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

    Our whole family plays at 359. The kids train on Saturday morning, and my wife and I joined the adult group. It's become our shared hobby in the Netherlands. The coaches speak English and the international atmosphere makes us feel right at home.

    Chen Wei & Lin

    Expat family — kids + adult program

    Register now

    Capacity is limited per day and per age group. Don't wait too long!