"The Problem: You're swinging hard but the ball has no weight.• You’re stiff, your timing is off, and your arm is doing all the work.• That’s linear tennis and it’s a dead end. The Solution: • Broudy’s NonLinear (45º) Tennis System. • You’ll stop hitting and start flowing. • By using the 45º line up, you’ll unlock the rotational power of your core. The Result:• Massive, effortless power and a heavy ball that pushes your opponent back. Stop fighting your body and start using physics."

Brian Teacher

Australian Open Champion

"My brother Bob and I have known the fluid strokes and the feeling of being 'connected' in the game of tennis for much of our lives. It's great to understand the science behind this feeling, so we can use it to play even better. This system helps players experience natural strokes — and the Swivels helps us loosen up our hips and entire body, both before and after we play."

The Bryan Bros.

ATP World #1 Doubles

"Jack Broudy is a remarkable tennis leader and contributor. Jack's unique tennis system helps coaches, parents, and players understand the physics of tennis and apply it naturally to every stroke – making the game clearer, more efficient, and more accessible for everyone. He's made a great impact in our sport."

Fernando Segal

President GPTCA and Segal Institute, endorsed by ATP

"I was lucky enough to start my tennis journey with Jack as my coach from nearly the beginning. Jack was able to bring me to success by hyper-focusing me on a core system of learning and foundation that I could build my game off of. Tennis is guaranteed adversity— Jack's nonlinear system allowed me to address that adversity and thrive in it while I watched many around me crack. It sure is a lot more fun to play that way."

Steve Forman

Former #1 USTA Junior, College All American

"Having trained with Jack and his system since I was four years old, the concepts became second nature to me, eventually helping me reach the top 1000 in the world. The math behind the system is incredibly effective, but success still requires disciplined footwork to consistently get into position and find that 45-degree angle. It is a powerful framework that simplifies the game once you commit to the movement required to execute it."

Warren Wood

NCAA Champion, Singles and Doubles, UTR 14.2

"Jack can teach technique more effectively and faster than any coach I’ve ever seen. I once watched him teach a beginner to serve in less than 20 minutes. The student served with incredible pace and accuracy. When I watched it, I remember thinking “tennis coaches have been teaching the serve wrong this whole time!” If you have the chance to learn from Jack, I highly recommend it!"

William Boucek

The Tennis Tribe, Founder