Sunday, February 14, 2010

Another Sample Trackman Reading

If anybody has any Trackman reports that they want analyzed, they can feel free to post them in the 'Trackman' thread in the Golf Swing folder on my forum OR post it in the 'Help With My Swing' folder on the forum.

Here's a video of a golfer using Trackman.

There's many things to love about Trackman, but this video displays much of it, particularly its ease of use. It's about the size of a small suitcase and you can bring it right out on the range with your laptop and start using it. You can also use it for indoors hitting into a net, but being able to use a portable, accurate launch monitor outdoors is what golfer's have been looking out for quite some time.

Let's take a look at the numbers:

88.6 mph clubhead speed
-2.1 Attack Angle
-2.6 Clubface Angle

Average LPGA clubhead speed with the driver is 94 mph. This golfer is under that. Also note that the average LPGA attack angle with the driver is +3, this golfer hits downward -2.1*. The LPGA hits up on the ball with the driver to help optimize their distance as they usually lack the clubhead speed to hit it far.

However, I would probably try to get this golfer to shallow out the attack angle only a little bit as I would continue to develop their swing before I considered hitting up on the ball. The big reason being is that with an upward attack angle the golfer will need to swing out to the right in order to hit it straight. I think there's a good way to do that, mainly by getting your address position more closed instead of regular LPGA golfer who swings well out to the right with a square stance which can cause some swing compensations IMO. Plus, as this golfer develops their swing, their clubhead speed may greatly develop as well.

The clubface angle would trouble me as well as the PGA Tour quality golfers usually keep their clubface in the -1 to +1 degree range. -2.6 is outside of that spectrum and the only way the golfer gets the ball back to the target is with a fade.

To properly hit that fade she'll need a Horizontal Swing Plane (aka 'swing left') of about -3 to -4*. If she had a square face and wanted to 'zero out' her path, she would need to swing left by about -2*.

-2.0* Horizontal Swing Plane

Attack angle was -2.1* and the HSP is -2.0*. With a driver that will 'zero out' the clubhead path into the golf ball.

-0.2* Club Path

As expected with the Attack Angle (-2.1) and the HSP (-2.0*), the clubpath gets 'zeroed out.'

This *should* create a pull draw (-2.6* face angle, -0.2* club path).

49.3* Vertical Swing Plane

Here's where Trackman doesn't realy help John Erickson's Advanced Ball Striking much. One of the fundamentals of ABS is getting on the '4:30 line' (elbow plane) on the downswing and while this VSP is somewhat flat, it doesn't tell us if we are on the 4:30 line or not. Now, one could get a camera and check to see when they are on the 4:30 line and then measure that VSP angle. However the VSP should change and get more upright as the clubs get shorter.

9.2* Vertical Launch
-2.3* Horizontal Launch

Ball went a bit low (vertical launch should be about 10-14* with a driver) and started -2.3* left which we expected with the clubface angle at -2.6* closed.

8.2 Spin Axis

The instructor notes that with the spin axis the golfer must have hit the ball off the heel. A positive number spin axis means the ball is spinning to the right or has a slice spin to it. A negative number means a hook spin.

This golfer had a -2.6* face angle and a -0.2* path. Which should result in a pull draw. Instead the spin axis is going the opposite way which gives the indication the golfer hit this off the heel.

15.1 yards Max Height

Very low height, should be more towards 25 yards. This low height is partly due to low clubhead speed, a hit off the heel and some other factors as well.


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