Grant Grinnell Tennis Achievements

The Modern Pathway to Universal Mastery — 

 The Tennis Rhythmic Advantage represents the modern evolution of performance training, updated for today’s science. It goes beyond mindset alone to deliver a complete, evidence-based model of how real performance is built and sustained.

This book integrates awareness, movement, timing, kinetic-chain flow, breathing, vision, posture, nervous-system function, and rhythm into a single, unified performance system—Revealing current  processes earlier approaches could not clearly define. The book then advances further, revealing the measurable patterns that produce confidence, consistency, and repeatable performance under pressure.

Scientific research shows:

• Rhythm solves inefficiency at its core because it synchronizes the body’s systems into one coherent performance loop.

• Once this loop is established, timing sharpens, the nervous system opens, and your best technical, tactical, and mental performances emerge—often better than you thought possible!

This book is built on efficiency and intelligent design, helping players turn repetitive challenges into lasting breakthroughs by restoring the performance loop that drives winning success. 

If you’re ready to discover the rhythm that organizes your entire game, now is the moment to step forward, get your copy, and experience your game fully aligned!

Featured Book Review on Amazon

 In a sea of bad coaching and generic regurgitated technical instruction, come a book that highlights the inner regulator of our mind > body connection. Nervous system regulation is something that is the foundation of everything yet rarely know. We all are looking for the “flow” state and many preach that this state is a vague, ethereal mode we randomly fall into from time to time. Grant gives us the code to unlock this state that we all strive for.  

Grateful for this book as it speaks to me in ways that I’ve been searching for quite some time.

Grant Grinnell Recommendations

“Transformational tennis coach. Brilliant... Can improve your tennis and change your experience with the game. I Highly recommend Grant.” 

Lori Wartman

"His knowledge and commitment is better than any 5 start resort I have been to. He is Phenomenal."

Anton Robbi

"He helped me add more shots to my game than all  my other instructors combined." 

Lois Mustoned

"I feel very fortunate to have Grant's remarkable expertise, amazing instruction and knowledge. He is the tennis whisperer."

David Montalba

"Due to his special talent as an instructor, I have been able to perform at a level I never dreamed possible." 

Mary Houghes

"We got more out of our first hour with Grant than we had working six months with another instructor." 

Rick Baxter

"Grant is the finest coach I have encountered in the world.  Four Seasons is fortunate to have him." 

Sarah Hunter

"The most up to date ball-striking instruction I have ever experienced. Hands down the most valuable tennis instruction on the planet." 

Byron Elton

"I have benefited personally as a 6.0 tennis player, and as a full time coach from Grant's methods more than all of my other resources put together."

Jesse shouten 

"You're amazing! I haven't found anyone that can come close to your teaching style.

Thanks for making my trip so special.  Grant is the Greatest." 

Eliana Brook