No more binders. No more YouTube videos. Elevate your speed training offerings to the 21st century and track your students effortlessly in TheStack App.
A.I. Programming from Dr. Sasho MacKenzie
Let the Savant of Speed train your players with cutting-edge techniques backed by years of speed training research.
Precision Hardware
5 CNC milled weight combined for 30 unique mass combinations from 0 grams up to 300 grams. This precision powers highly customized resistance levels.
For Coaches
TheStack Certified Course
Understand the Science Behind TheStack
Explore the biomechanics of swing speed and Variable Inertia Speed Training with expert insights from renowned biomechanist and Co-founder Sasho MacKenzie.
Elevate your Instruction
Learn how to integrate TheStack into your coaching practice with a clear blueprint to help you administer speed training effectively and profitably.
Earn 3 PDR Credits
As a PGA-recognized program, PGA Members can earn points upon completion of the course.
Proof in the Numbers
Over 40,000 Stackers have gained serious clubhead speed. Help your customers enjoy the same success.
The training protocols that Sasho has created within TheStack App are exactly what my students need to train the skill of speed.
Grant Waite
PGA Tour Winner & Coach
"TheStack is by far the best speed training system available to golfers."
Chris Como
Golf's #2 Ranked Instructor
I'm loving the system. I love that it individualized your program. I've already gained 8 mph in just 5 weeks. Can't wait to see what I can gain by spring.
I am loving the speed training. I converted from Super Speed training where my results were mediocre. I started out in 90ish mph, I just hit 100 mph eSwing so pretty major progress. Thanks The Stack team!