Terry Hashimoto on how to Exploit Ground Reaction Forces Correctly

Terry Hashimoto on how to Exploit Ground Reaction Forces Correctly

Author: PGA TOUR January 16, 2024 Duration: 54:14

Terry Hashimoto is the founder of Jazz Golf in Canada, a co-developer of the BodiTrak Golf Pressure Mapt, and inventor of the world's first inertial measuring unit for golf and other major golf products.  He is a PGA Professional and one of the foremost experts in the field of Pressure Mapping and Ground Reaction Forces (GRF) and he joins #OntheMark to teach you the mechanics of building a good golf-swing from the ground up.

He talks about GRF at length and illustrates important charts and data that pertain to the "Flow of Energy" with specific regard to:  

  • Efficient and Inefficient Pressure Traces,
  • The Center of Pressure and what it represents,
  • Velocity Charts and how Peak Velocity is created, and
  • Vertical Forces, what they are, how they are exploited and when they are exploited in the swing.

He also shows the differences between Professionals and Amateurs, Long Drivers and Short Drivers.  He shows what Long Hitters do in the swing for power and he describes and illustrates Power Address and Impact positions.  

He talks about Rotary, Lateral and Vertical Forces in the swing and when and how they should be used, and he shows how Pressure Mapping and the correct use of the ground can mitigate injuries.

This podcast is also available as a vodcast on YouTube.  Search and subscribe to Mark Immelman.


Mark Immelman brings a rare perspective to the On the Mark Golf Podcast, shaped by his own journey from college coach to broadcaster and instructor. Here, conversations go far beyond simple swing tips. Each episode feels like a deep dive into the ecosystem of elite golf, facilitated by Immelman’s genuine curiosity and deep knowledge. You’ll hear PGA TOUR players unpack the specific decisions behind crucial shots, while swing coaches break down the mechanics in accessible language. But the discussion doesn’t stop there. Caddies share their strategic roles, fitness experts explain the foundations of power, and mental coaches offer tools for the psychological game. This podcast, presented by the PGA TOUR, provides a comprehensive look at what it truly takes to excel, from equipment nuances to the unspoken pressures of competition. It’s that blend of technical insight and personal storytelling, gathered from the very best minds in the sport, that can genuinely change how you think about and play the game. Whether you're a seasoned player or a dedicated fan, these conversations offer a unique, inside-the-ropes education you won’t find anywhere else.
Author: Language: English Episodes: 850

On the Mark Golf Podcast
Podcast Episodes
Jon Sherman (Practical Golf) on the Four Foundations for Better Golf [not-audio_url] [/not-audio_url]

Duration: 1:00:24
Jon Sherman is the founder of practical-golf.com, a website dedicated to being an honest resource for the everyday golfer who is looking to improve and enjoy the game more. Already a best-selling author, Jon recently pub…
[not-audio_url] [/not-audio_url]

Duration: 0:00
Jon Sherman is the founder of practical-golf.com, a website dedicated to being an honest resource for the everyday golfer who is looking to improve and enjoy the game more. Already a best-selling author, Jon recently pub…
Greg Chalmers with Sure-Fire Ways to Lower Your Scores [not-audio_url] [/not-audio_url]

Duration: 38:34
Greg Chalmers (Australia) is a 2x Australian Open Champion and a PGA TOUR Winner. A back injury has seen him curtail his PGA TOUR playing schedule and now Chalmers is using his extra time to give golf lessons. He has lon…
Darren May Helps You to Practice and Train like a PGA TOUR Pro [not-audio_url] [/not-audio_url]

Duration: 50:19
Darren May is the Director of Golf at The Grove XXIII and a sought after PGA TOUR Instructor. He joins us to dive into how professionals practice and prepare to get the most out of their play under pressure. Darren break…
Bob Toski on Golf and Building a Golf Swing for a Lifetime [not-audio_url] [/not-audio_url]

Duration: 40:27
Bob Toski is a legend of golf instruction, a member of The PGA Hall of Fame, a former PGA TOUR winner, and still teaching golf at age 95. Arguably the "Father of Modern Instruction" Toski joins Mark Immelman to talk abou…
[not-audio_url] [/not-audio_url]

Duration: 0:00
Bob Toski is a legend of golf instruction, a member of The PGA Hall of Fame, a former PGA TOUR winner, and still teaching golf at age 95. Arguably the "Father of Modern Instruction" Toski joins Mark Immelman to talk abou…
[not-audio_url] [/not-audio_url]

Duration: 0:00
Bob Toski is a legend of golf instruction, a member of The PGA Hall of Fame, a former PGA TOUR winner, and still teaching golf at age 95. Arguably the "Father of Modern Instruction" Toski joins Mark Immelman to talk abou…
Erik Barzeski on How to Be a Good Student and Improving Your Golf [not-audio_url] [/not-audio_url]

Duration: 50:05
Erik Barzeski brings both an extensive scientific understanding as well as a history of teaching to his golf instruction. Recognized as a Golf Digest “Best Young Teacher in America” in 2017 and a Golf Digest “Best in Sta…
Ted Scott with Lessons to Learn from The 2022 Masters [not-audio_url] [/not-audio_url]

Duration: 44:01
Ted Scott is a Golf Professional, Golf Instructor and a long-time PGA TOUR Caddy. Having spent many years at the highest level of the game working for Grant Waite, Bubba Watson and now Scottie Scheffler, Scott is hugely…