Book cover and Triple-5 Mental Strength Model from The Mental Habits of Winners

What This Book Solves

Winning tennis matches is not just about technique and tactical play.

It is about making the right decisions under pressure, managing emotions, and staying focused at critical moments.

Most players rely on motivation. But motivation is inconsistent.

This book introduces a structured mental training approach based on routines, awareness, and repeatable habits.

Instead of vague mental advice, you learn how to:

  • + build mental routines
  • + handle pressure situations
  • + stay focused between points
  • + recover after mistakes
  • + make better decisions during matches

Competitive

Wants more consistency

Independent

Trains on their own

Pressured

Tightens up in matches

Distracted

Loses focus too easily

If this sounds like you, this book gives you a structured way forward.

Roger Wheller

The book gives clear insight into how players can develop the mental skills needed to become the player they want to be. An informative read for the tennis enthusiast.

Roger Wheller

Sports Psychology Researcher & Author

Vidi Demireva

A simple explanation of mental skills combined with real-life examples. Easy to understand and apply, and a complete model for athletes.

Vidi Demireva

Tennis Player, Coach & Sports Psychologist

Andrea Nespoli

A valuable contribution for coaches and athletes. A strong stimulus for players to engage in mental training.

Andrea Nespoli

Sports Psychologist & Mental Tennis Coach

I’ve read several books on mental strength in tennis, but none felt as structured, concrete, and practically applicable as The Mental Habits of Winners. The story format is also very enjoyable and makes it easy to read.

Gert-Jan

Tennis Player

A great book for anyone who wants to improve their game from the mental side. It is described very clearly and systematically, with actions you can apply immediately. Not to be missed for players, coaches, and tennis parents.

Janine

Tennis Player and Tennis Parent

I’m really noticing progress. I still fall back sometimes, but my mental recovery during play is already much faster. The model is very clear, and the practical tools are spot on. I also really like the way the book is written.

Dennis

Tennis Player

Digital Edition

Includes both PDF and ebook formats.
Delivered immediately
after purchase.

Print Edition

Best option for readers
who prefer a physical
book.

Blank Mental Tennis Routine Template based on the Triple-5 Mental Strength Model

Build Your Own

Blank Mental Tennis Routine Template $1

One-page template to create and structure your own mental tennis routines.

Complete Mental Tennis Routine Template Pack based on the Triple-5 Mental Strength Model

Complete Pack

Complete Mental Tennis Routine Template Pack $25

Seven ready-made routines plus the blank template for common mental challenges in matches.

Support Your Mental Training

Top Tennis Tracker provides structured match data and performance feedback.
Inner Tennis supports reflection and awareness between matches.
Both tools extend the system introduced in the book.

Ajdin Kolonić, author of The Mental Habits of Winners

About the Author

Ajdin Kolonić is a tennis coach focused on the mental side of the game and the creator of the Triple-5 mental strength model, which forms the basis of The Mental Habits of Winners: A Step-by-Step Guide to Becoming a Mentally Strong Tennis Player.

He helps competitive players train their mental game in a structured and repeatable way.

He is the founder of Slim Tennis, a Dutch mental coaching platform, and the developer of Top Tennis Tracker and Inner Tennis.