The Radius by Cupp Golf

09/03/2026

When you study golf using the science of kinesiology, fundamental principles of human movement in the golf swing will come up again and again and be utilized by great players who have longevity in the game.

In this amalgamation of two clips from 1960 and 2025, Mike Austin ( 1984 Instructor of the Year and Record Long Driver) and Rory McIlroy ( Grand Slam Winner), discuss the advancing left arm and shift during the downswing.

The straight advancing left arm is a major stabilizing factor in consistently accurate long driving. We think it is illuminating to hear both of these outstanding golfers discussing this mechanic in their own words - almost as if they are finishing each other's sentences.

Learn more about Mike Austin, Cupp Golf, and The Radius Training Aid based on authentic teachings of Mike Austin at:

cuppgolf.com

Use promo code META20 for 20% off

08/30/2026

Digitized and restored, these never before seen lessons go into detail on short game shots including chips, pitches, and bunker play. Subscribe and follow to follow updates on the release.

Visit cuppgolf.com to learn more about Mike Austin and The Radius Swing Training aid - based on authentic teachings of one of golf's most legendary instructors.

08/29/2026

Coming soon! Never before seen instructional video from Mike Austin on the Short Game. Digitized, edited, and restored by Cupp Golf.

Learn more about Cupp Golf and its relationship with Mike at:
cuppgolf.com

08/27/2026

The Radius swing training aid is developed by golfers and engineers personally trained by the legendary instructor Mike Austin. This clip shows how The Radius trains the fundamental principles of a solid golf swing based on Mike Austin's authentic teachings. Use the Radius to eliminate shoulder wobble, left arm collapse, overcocking, overpronation, oversupination, overflexion and overextension.

Learn more and order yours from:
cuppgolf.com

Use promo code IG20 for 20% off.

08/23/2026

Tell us what you think about the Flammer and the Radius!
https://www.youtube.com/watch?v=_lwGrooVGuU

The Radius Training Aid by Cupp Golf is designed by engineers perso...

08/08/2026

The Radius Training Aid by Cupp Golf is designed by engineers personally trained by legendary PGA of America instructor Mike Austin. The Radius is built to incorporate classic principles of kinesiology, anatomy, and physics to make a truly effective training aid for the modern golfer.

The Radius develops precision hitting and coordinating. It trains the reflexes to control the clubhead to release the energy of the swing through the impact area.

The Radius promotes the elimination of common swing errors such as the cut across, the smothered hooks, the shoulder wobble, and the left-arm collapse. It prevents overcocking, overpronation, oversupination, overflexion, and overextension.

Learn more about the Radius and order yours from:

CuppGolf.com

Use promo code IG20 for 20% off.

08/05/2026

The Radius swing trainer is designed by engineers personally trained by legendary instructor Mike Austin. The Radius is inspired by Mike's original training aid The Flammer. The Radius incorporates a wide range of patented improvements that make it the ideal training aid for maintaining width in the swing and correct alignment of hands, wrists, forearms, shoulders, torso, and the plane through which they move.

Learn more at cuppgolf.com and use promo code IG20 for 20% off.

08/03/2026

The Radius swing training aid is designed by professional engineers personally trained by legendary instructor Mike Austin (world record 515 yard drive and SCPGA Instructor of the Year in 1984).

The Radius is inspired by Mike's invention, The Flammer, and is engineered with a series of patented modern improvements for fit, feel, comfort, and durability. Use the Radius to develop a correct golf swing. It trains the reflexes to control the clubhead and release the power of the swing through the impact area. The Radius helps eliminate overcocking, overpronation, oversupination, overflexion and overextension.

The Radius promotes precision hitting and coordination using the sciences of kinesiology, physics, anatomy, and materials engineering.

Learn more at cuppgolf.com and order yours with promo code:
IG20.

08/03/2026

The Radius swing trainer is designed by engineers personally trained by the legendary instructor Mike Austin. The Radius develops a correct golf swing by connecting the hands, wrists, forearms, shoulders, and torso to the plane through which they move. It helps to eliminate overcocking, overpronation, oversupination, overflexion and overextension. Use it to promote precision hitting and coordination by training the reflexes to control the clubhead and release the power through the impact area.

Learn more at cuppgolf.com

Order yours with promo code ig20 for 20% off.

08/02/2026

The Radius swing trainer is designed by engineers personally trained by the legendary PGA instructor Mike Austin. It develops a correct golf swing. It promotes the correct positioning of hands, wrists, forearms, shoulders, torso, and the plane through which they move. It promotes the reduction of overcocking, overpronation, oversupination, overflexion and overextension.

Learn more at cuppgolf.com.

Order yours with discount code ig20 for 20% off.