Oops! Sorry!!


This site doesn't support Internet Explorer. Please use a modern browser like Chrome, Firefox or Edge.

Get The Book

Price: $35

Build the Mindset. Master the Principles.

Get David’s proven lessons, experiences, and strategies from decades on the mat—packed into one practical guide you can apply to judo and life.

What You Get

  • Proven judo & life

  • Principles Mindset and performance strategies

  • Lessons from 46+ years of experience

  • Practical tools you can use immediately

After My Coaching

This Book Changed the Way I Approach Training

Unstoppable made me realize that my biggest obstacle wasn’t my opponent—it was the way I was talking to myself. The lessons on confidence, failure, and persistence completely changed how I approach difficult training sessions.

— Martial Arts Reader

Every Martial Artist Should Read This

This isn’t just another motivational book. The principles apply directly to martial arts. Losing, struggling, getting frustrated, hitting plateaus—David shows you how to turn those experiences into opportunities to improve.

— Judo Practitioner

It Helped Me Stop Being Afraid to Lose

One of my biggest struggles was worrying about losing before I even competed. Unstoppable helped me change the way I look at failure. Instead of trying not to lose, I’m learning to focus on performing, learning, and improving.”

— Judo Competitor

Perfect for the Older Martial Artist

As an older martial artist, it’s easy to compare yourself to the younger athletes in the dojo. This book reminded me that my journey is mine. I can still improve, set goals, challenge myself, and become better regardless of my age.

— Veteran Martial Artist

The Mental Training I Was Missing

We spend hours practicing throws, submissions, escapes, and combinations, but very little time training our mindset. Unstoppable filled that gap for me. I’m approaching both training and competition differently now.

— BJJ / Jujitsu Practitioner

Getting Thrown Isn’t Failure—Staying Down Is

The message that stuck with me most was simple: get back up.
That’s what we do in judo, and it’s what we have to do in life.
This book connects those two
worlds beautifully.

— Judo Student

I Needed This During a Training Plateau

I was frustrated because I felt like everyone around me was improving while I was standing still. Unstoppable helped me change my perspective, stop comparing myself to everyone else, and focus on small improvements every time I train.

— Martial Arts Student

More Than a Martial Arts Book

I started reading this because of David’s martial arts background, but quickly realized the principles applied to my career, relationships, goals, and everyday life. The lessons from the mat really do carry over into everything.

— Martial Arts Reader

It Made Me Want to Get Back on the Mat

Life got busy and martial arts slowly disappeared from my routine. Reading Unstoppable reminded me why I started training in the first place. Sometimes you don’t need another technique—you need to rediscover your reason for showing up.

— Returning Martial Artist

Great Resource for Coaches

As an instructor, I constantly work with students who struggle with confidence, fear, frustration, and losing. This book gave me another way to think about the mental side of martial arts and the lessons we’re really trying to teach our students.

— Martial Arts Instructor

Author of UNSTOPPABLE • Peak Performance Coach • 5th Degree Judo Black Belt • Former #1 Ranked U.S. Judoka

[email protected]

© 2026 DBJ. All Rights Reserved.