A better chance in top tennis starts with a stronger foundation at NTC Amstelveen.
For ambitious young players who want to build tennis skills, movement, motivation, focus and match behaviour through the 359 Method and Fit · Fun · Focus.
Progress. Not perfection.
No promise of reaching the top, but a serious development environment where ambition, training, motivation and progress come together. Together we look at whether Academy or another 359 group is the right fit.
359 Academy Amstelveen is a structured development environment for ambitious young players training at NTC Amstelveen. The programme is built around the 359 Method and Fit · Fun · Focus, with attention for tennis skills, movement, motivation, focus, match behaviour, parent communication and long-term progress.
From foundation to performance
At NTC Amstelveen, players follow a clear development pathway — from first ball contact to performance-oriented training.
See below how this academy programme is concretely built. Entry runs via intake or audition, so we can assess level, motivation and commitment.
Progress. Not perfection.
Ages 5–7
Playful yet purposeful — the first step
- •Ball sense and motor coordination
- •First technical habits
- •Enjoyment, safety and confidence
- •Learning within structure
Weekly programme
A strong foundation is easier to build than to correct later.
Ages 7–9
Deepening technique and training rhythm
- •Technical foundation: strokes + footwork
- •First tactical awareness
- •Body control and physical development
- •Training attitude and discipline
Weekly programme
In this phase, technique stabilises and training becomes more serious.
Ages 9–11
Serious development becomes visible
- •Technical stability
- •Match-oriented thinking
- •Physical discipline and load capacity
- •Ownership of personal development
Weekly programme
This is where the difference between training and developing shows.
Ages 11–12
Performance-oriented acceleration
- •Independent match preparation
- •High-intensity sparring and match rhythm
- •Physical and mental resilience under pressure
- •Development focused on next-level progression
Weekly programme
This is where progression becomes visible.
At NTC Amstelveen, we start with a conversation about the right phase for your child.
This program only works optimally when player, coach and parent work together.
Experience the Academy programme at the location where this development takes shape every day.
Watch our Academy explanation
In this video, we explain how our youth tennis academy in Amstelveen works and how we create an optimal development programme for each phase between ages 5 and 12.
Watch Academy programme explanation
Why this program works
Development does not happen by itself. What children learn in these years shapes what becomes possible later.
- A strong foundation prevents limitations later on
- Structure accelerates development
- Environment determines the pace of growth
How this program works
The 359 Academy is not a collection of sessions. It's one system — where training, guidance and environment work together.
This system only works optimally when player, coach and parent work together.
The role of parents within the Academy
Development does not stop after training. A child's environment strongly influences how fast and how far they grow.
- Parents gain insight into progress and development
- We help parents understand what matters in each phase
- We work on behaviour, focus and routines — not just outcomes
- Parents and coaches work together with one goal: long-term development
That is why we do not work with isolated lessons, but with a system in which player, coach and parent move together.
Academy Proof Layer — Amstelveen
At NTC / TV De Kegel, everything comes together.
NTC / TV De Kegel is our flagship environment: courts, structure, coaching team and method in one professional tennis setting. No promise that a player reaches the top — a serious pathway designed to maximize the chance of reaching the highest possible tennis level.
At NTC / TV De Kegel, we develop the player and the person: technique, athletic foundation, motivation, focus, match behaviour and personal growth. Not through longer hours, but through broader and more deliberate training — from a young age.
- Mechanism: Fit · Fun · Focus as the thread through every development phase.
- Entry: Through an intake or tryout — level, motivation and commitment lead the way.
- Environment: A consistent coaching team, each with their own specialism, working from one shared method.
We do not measure players against others. We focus on progress: learning to train better, think better, handle setbacks better and step by step get more out of yourself.
At NTC / TV De Kegel, the Academy environment comes together: courts, structure, coaching team and method in one fixed training location. Here we use Fit · Fun · Focus to build progress as a tennis player and as a person.
Not as a ranking promise, but as a daily development environment for ambitious players.
Meet the 359.coaches
Every 359.coach is internally certified in The 359 Method. This means: trained in our own method, educated in child-centred development, and assessed on both theory and practice. They don't just coach technique — they guide players in their personal growth.
Herke Sombroek
Contact Person Academy & KNLTB Entry
Internally trained in The 359 Method
Cristian Savelsbergh
359.coach — kids, academy, juniors & adults
Trained in the Fit · Fun · Focus™ method
Yoeri Terschegget
359.coach — kids, academy, juniors & adults
Trained in the Fit · Fun · Focus™ method
Ready for the next step?
Get in touch. Together we look at whether Academy or another 359 group fits your child at NTC Amstelveen.
We are working towards at least two evaluation moments per year; the exact form of progress reporting will be rolled out further in 2026.
359.tennis Academy Amstelveen Impressions
A look inside our academy training sessions at the NTC
ABN AMRO OPEN experience
ABN AMRO OPEN team outing
Group photo with coaches
Indoor training session
Academy group in action
Outdoor training on clay
Outdoor group training
The facilities to grow
Progress requires the right environment. The National Tennis Centre in Amstelveen offers everything you need — 12 indoor courts and 14 outdoor courts, all year round. No membership needed for indoor. Outdoor lessons for members of TV De Kegel.
Frequently Asked Questions
KNLTB Pathway Partner
The greatest talents can audition and progress into our academy and KNLTB pathway programmes.
What Our Players Say
Read experiences from players and parents who train at 359.tennis.
Fleur progressed through 359 to the KNLTB talent pathway. The collaboration between the Academy and the federation is seamless. She's now coached at national level but still prefers training at the NTC with her regular coach.
Nienke Groot
Moeder van Fleur (12) — Academy + KNLTB
Our sons have completed the full Academy pathway at 359.tennis: as beginning players, developed through academy training to the top of the Netherlands. Highlights for Felix included winning a gold tournament and reaching #3 on the KNLTB ranking for ages up to 12 in 2025. As of October 2025, both Karl and Felix have graduated from the academy at age 12. A journey with structure, quality, and visible growth.
Ouders van Karl & Felix Korotkiy
Volledige Academy-lijn + resultaten
Stijn trains four times a week in the Academy and the progress is impressive. But what appeals to us most as parents is that they also work on mental resilience. He can now deal much better with losing and frustration — that's a life skill.
Familie Van den Berg
Ouders van Stijn (11) — Academy selectie
359 has developed multiple junior players who went on to win national youth titles. KNLTB Instroom Partner.
Progress. Not perfection.
"From beginner to talent, to the world top. We guide the most crucial phase in talent development: ages 5 to 12. These are the years where the foundation is laid for technique, motor skills, mindset and character. Early, specialized guidance makes the difference between potential and performance."
Founder 359.tennis
We Develop Players and People
In Amstelveen, we combine top-level facilities with personal attention. Whether your child is just starting out or progressing towards competitive level — our coaches listen, inspire and help every player take steps towards their next level.
Every activity at 359.tennis is built on the three pillars Fit · Fun · Focus™. Our coaches are internally trained in The 359 Method — they don't just coach technique, they inspire growth and create experiences where body, heart and mind develop together.
Progress. Not Perfection.
Fit
Physical energy, coordination and resilience. A healthy body is the foundation.
Fun
Enjoyment, connection and motivation. Lasting progress starts with passion.
Focus
Mental strength, strategy and reflection. Skills that extend beyond sport.
Facts about 359.tennis
Verifiable facts that distinguish 359.tennis as a professional tennis academy in the Amsterdam region.
- All coaches are KNLTB-certified (Royal Dutch Lawn Tennis Association) and complete annual professional development.
- 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.
Ready for the next step?
Get in touch. Together we look at whether Academy or another 359 group fits your child at NTC Amstelveen.
From our Knowledge Base
The first tennis lesson: what parents should know
Practical info about clothing, equipment and what to expect at the first lesson.
Player development per phase
How children develop motorically and cognitively on the court.
Group training vs. private lessons
What suits you better? A comparison of training formats.
Tennis technique per age group
Which techniques suit which age group?
More about 359.tennis
Nearby locations
Also explore
Discover our other lesson programs
Juniors
Ages 10-18
Technique training and match preparation for young players at every level
Private Lessons
Personal 1-on-1 coaching tailored to your goals and level
Indoor Tennis
Train year-round on the indoor courts at the NTC
359 Method
Our unique Development System: Fit · Fun · Focus for growth on and off the court