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In this video, I compare the driver swing of Jason Day and Dustin Johnson, two of the longest and most accomplished golfers in the world. I did this analysis at the request of my readers, as well as to show that there are many, many ways to swing a golf club effectively, even at the world-class level.

For more about me and how I teach, visit www.dennisclarkgolf.com or go to my Facebook Page

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Dennis Clark is a PGA Master Professional. Clark has taught the game of golf for more than 30 years to golfers all across the country, and is recognized as one of the leading teachers in the country by all the major golf publications. He is also is a seven-time PGA award winner who has earned the following distinctions: -- Teacher of the Year, Philadelphia Section PGA -- Teacher of the Year, Golfers Journal -- Top Teacher in Pennsylvania, Golf Magazine -- Top Teacher in Mid Atlantic Region, Golf Digest -- Earned PGA Advanced Specialty certification in Teaching/Coaching Golf -- Achieved Master Professional Status (held by less than 2 percent of PGA members) -- PGA Merchandiser of the Year, Tri State Section PGA -- Golf Professional of the Year, Tri State Section PGA -- Presidents Plaque Award for Promotion and Growth of the Game of Golf -- Junior Golf Leader, Tri State section PGA -- Served on Tri State PGA Board of Directors. Clark is also former Director of Golf and Instruction at Nemacolin Woodlands Resort. He now directs his own school, The Dennis Clark Golf Academy at the JW Marriott Marco Island in Naples, Fla.. He can be reached at [email protected]

17 Comments

17 Comments

  1. Dennis Clark

    Jul 1, 2016 at 1:09 pm

    and blessed genetics!

  2. Phil Underhill

    Jul 1, 2016 at 7:30 am

    It’s incredible how long DJ keeps the clubface square past impact, in fact it appears that the club is more open 12″ past the ball !!

    It makes sense that this should happen given how shut he is at the top, and in fact generally seems like a logical way to swing

    • dennis clark

      Jul 1, 2016 at 8:54 am

      I think it good if you’re in the super high speed athletic mode as is his case. Not sure that has sufficient power for most though.

      • Phil Underhill

        Jul 1, 2016 at 9:10 am

        see what you mean, his length is due to the fact he’s 6’5″, athletic and has about 110º shoulder turn. could be potentially longer but maybe less straight

        take away the height and shoulder turn and you’re at Zach Johnson clubhead speed, and he’s in better shape than most!

    • bc

      Jul 1, 2016 at 1:31 pm

      Well he has to shut at the top because he wants to come into it with the face closed to target so he can his his busting cut and hold it off like that

  3. Dennis Clark

    Jun 30, 2016 at 2:22 pm

    The thing that goes unnoticed about DJ is the amount RIGHT WRIST cup he gets (and keeps) as a result of that left wrist flexion.

  4. Dennis Clark

    Jun 30, 2016 at 9:10 am

    long, lanky, supple, strong etc. not a lifetime swing IMO…

    • Canadian Smizzle

      Jun 30, 2016 at 10:10 am

      Uh oh. I am certainly leaning towards the dj model a fair bit. And wow did i ever pick up club head speed. I was around 97 and my fastest swing is 122 on a flightscope. 118 average. I hooked it at first but i recently figured out how to move the ball both ways again. But it is real hard to move the ball less left and right swinging that fast. 97 mph i could shape both ways.

  5. Jim

    Jun 29, 2016 at 5:54 pm

    As said, both super athletes, chances are they both would be just as good had they had learned from someone other then who they did…..it is called talent, hand eye coordination if you will. To much time is spent trying to explains why these guys and gals on tour are so good…it is simple, they just are that good.

    • dennis clark

      Jun 29, 2016 at 6:21 pm

      True Jim..the point of the analysis is how there are many ways that the great athletes accomplish what they do. Very different techniques from two world class athletes!

  6. Bob Pegram

    Jun 29, 2016 at 2:43 pm

    As you point out, Dustin Johnson is very shut at the top due to his bowed left wrist. But his left wrist is not bowed at impact. My guess is that he is very loose jointed and that was a way when he was a kid to keep from leaving the face way open and hitting it dead right. That is an easy mistake to make for people who are loose jointed including loose wrists, especially a skinny kid.

    • Dennis Clark

      Jun 29, 2016 at 3:24 pm

      somebody was smart enough to leave him alone…thank goodness. Someone had tried to “fix” that club face, we may have never heard of DJ…

      • Edley

        Jun 29, 2016 at 5:42 pm

        We would have, but probably as an athlete in a different sport.

        • Steve

          Jun 29, 2016 at 6:56 pm

          Not likely

        • Brian

          Jul 1, 2016 at 8:43 am

          In which sport? He was a good HS basketball player but he’s “only” 6’4″. That’s on the smallish side in the NBA except for guards, and DJ wasn’t a guard. He might be an athletic freak by golf’s standards, but he’s quite pedestrian by even NCAA basketball standards.

      • beejaybee

        Jul 1, 2016 at 12:17 pm

        Credit to Allen Terrell – CCU Golf Coach

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On Spec

On Spec: The best gear of 2020 with guest Johnny Wunder

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After a very interesting year in the golf equipment world, host Ryan Barath welcomes fellow GolfWRX writer and podcaster Johnny Wunder—of The Gear Dive—to chat about everything we saw in 2020 and what could be next.

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Flatstick Focus

Flatstick Focus: Interview with the Moose

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In Episode 28, we chat with leftymoose, a very diverse putter collector from Canada. He has close to 50 putters from several manufacturers and helps shed some great insight into the collecting world.

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Opinion & Analysis

What makes a golf ball curve? (GolfWRX explains)

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At some point, every golfer has asked the question “Why did that shot slice? Why did that shot hook? How did that shot go straight?”

The simple answer is physics, but the actual reason is a little bit more complicated and has to do with the relationship the golf ball has with the golf club as it approaches contact, but that’s why we’re here to explain why your golf ball travels where it does.

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It’s all about spin axis – AKA “sidespin”

Spin Axis – Trackman Golf

Side spin is the commonly used, but incorrect way to describe the spin axis of a golf ball as it travels through the air. Rather than try and define it myself, I will refer to the experts at Trackman to help me explain what’s really going on.

“Spin Axis is the tilt angle relative to the horizon of the golf ball’s resulting rotational axis immediately after separation from the club face (post impact).”

“The spin axis can be associated to the wings of an airplane. If the wings of an airplane are parallel to the ground, this would represent a zero spin axis and the plane would fly straight. If the wings were banked/tilted to the left (right wing higher than left wing), this would represent a negative spin axis and the plane would bank/curve to the left. And the opposite holds true if the wings are banked/tilted to the right.”

Unlike a plane in the example used by our friends at Trackman, a golf ball has no propulsion system, and all the force that causes it to move comes from the golf club. Depending on how the club makes contact with the ball will result in how the ball will fly. It’s no different than how a tennis or ping-pong ball travels through the air after it is struck with a racket or paddle – a golf club is just a “paddle” with a much longer handle length.

Why does a golfball curve right and left?

There are 2 main factors of the impact that influence how a golfball will curve;

  • The direction the clubface is aimed relative to the target line at impact
    Face Angle

  • The direction the club is moving at the moment of impact
    Club Path

Face-to-path – How to hit a draw

So now that we have a better understanding of why the golf ball curves in one direction or the other, the video below from TrackMan and Martin Chuck does a great job explaining the relationship of face to path, and how to hit a draw.

How to hit a straight golf shot

Being able to hit a straight shot is one of the most difficult things to do in the game of golf. The reason professionals don’t intentionally hit straight shots very often is that when it’s not executed properly it can create a shot that misses both right and left and if there is one thing professionals and low handicap players like to see is a golf ball that misses in one direction.

Face Strike Point

Beyond the relationship between the clubface and path, hollow golf clubs also have another factor at play, and that is the bulge and roll – curvature of the face from top to bottom and side to side. This curvature combined with the gear effect of hitting a shot outside the sweet spot results in the club imparting a higher measured spin axis and as a result the ball curves even more.

Check out this video below by TXG demonstrating how strike location on a driver has an effect on how the golf ball curves.

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