TSI Performance
Academy

For nationally-ranked and internationally-competing players — and those with the ambition to get there.

Welcome to the TSI Performance Academy

Where Competitive Players
Develop Beyond the Game

The TSI Performance Academy is our most intensive training environment — built for players who compete at national or international level, and for those with the drive and commitment to reach those standards. Training here goes beyond technique. We develop complete players: tactically sharp, physically prepared, and mentally strong.

At TSI, we believe performance is not just about results. It’s about the person you become through the pursuit of excellence — the discipline, resilience, openness and self-awareness that competitive tennis demands. That process is what we’re here for.

Who Is This For

Built for Serious Competitors

The Performance Academy is open to players aged 12 and above who meet one or more of the following profiles:

National Competitors

KNLTB-ranked players competing in national tournaments

International Players

Players active on ITF Junior or Pro circuits

High Ambition Players

Committed players with clear goals to reach national or international level

College-Bound Athletes

Players targeting NCAA or other high-level university programs abroad

Program Details

Training Info

Season: Spring & Summer 2026 — March 1st through August 19th, 2026

Location: T.V. Luck Raeck (Outdoor TopClay) — Sportparkweg 3, 3604 AW Maarssen. Other locations may be possible. Contact us to discuss your wishes.

Entry: By assessment or coach recommendation. Contact us to discuss eligibility.

Investment

Program Pricing

Pricing is available upon consultation.

To receive full program details and pricing, please get in touch directly. We’ll discuss your goals, current level, and find the right training structure for you.

📧 info@TennisSchoolinternational.com
📞 +31 6 289 68 880

Private Training: Available alongside the group program for players requiring additional focused work on specific technical or tactical elements.

Why TSI

What Sets the Performance Academy Apart

Small training groups: 2–4 players per coach — every session is personalised, not generic
Biomechanics-led coaching: We address root causes. Differentiating style vs biomechanical principles. Better mechanics mean more power, consistency, and reduced injury risk
Tactical intelligence: Pattern play, point construction, match-scenario training built around your game style
International coaching background: Coaching staff with ITF circuit playing and coaching experience
The whole player: We strive for personal growth — not just tennis skills

The Coaching Team

Who You Train With

The TSI Performance Academy is led by head coach Sebastian Zapata — Former ITF circuit player and TSI founder with a coaching methodology built around technique, tactics, tennis IQ, and the mental game.

Sebastian Zapata

Head Coach & Founder

TSI founder with 15+ years coaching experience. Coaching methodology built around technique, tactics, tennis IQ, and the mental game.

Senior Advisor

Program Mentorship

TSI collaborates with Rudi Visser as a senior mentor, bringing elite international experience to the program in an advisory capacity.

Rudi Visser

Senior Mentor — Biomechanics Expert

Former ATP/WTA and ITF travelling coach. Contributes to TSI’s Performance Academy as an external advisor, sharing decades of elite international coaching expertise.

Physical Development

Fitness & Athletic Conditioning

Competitive tennis demands strength, speed, endurance, and power. For Performance Academy players, TSI offers specialized On & Off-court fitness training built around the physical demands of the game. Ask us about integrating conditioning sessions alongside your training program.