Understanding Your Swing Metrics: Head Stability Explained

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List of Metrics

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Head Stability section measures how much your head moves from its initial position at address to key phases of your swing. The movement is calculated as a percentage of your address height.

You can choose to display these metrics in centimeters (cm), inches (in), or percentages (%) by adjusting your preferences in Settings → My Info.

Backswing

Tracks head movement from address to the top of the backswing (when the hand reaches its highest point).

Downswing

Tracks head movement from the top of the backswing to impact (when the club makes contact with the ball).

Example

• If the backswing metric shows “Forward 2.4%, Downward 2.0%”, your head moved 2.4% forward of your address height and 2.0% downward during the backswing.
• If the downswing metric shows “Backward 2.4%, Upward 1.9%”, your head moved 2.4% backward of your address height and 1.9% upward during the downswing.

Target Bound

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Grading Scheme

Your head movement is evaluated against tour pro data and graded as follows:

Excellent – Falls within the top 90% of tour pro data.

Good – Within 1.2x the bounds of Excellent.

Okay – Within 1.5x the bounds of Excellent.

Caution – Outside the Okay bound, indicating excessive movement.

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Visual Feedback

If you enable Visual Feedback, Swing Tune-Up will provide visual feedback during practice by highlighting when and where you crossed the target bound.

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Progress Chart

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Swing Tune-Up automatically aggregates metrics calculated from your swing videos to show how you are improving over time! It currently shows the following stats.

• Swing Quality - Shows the percentage of swings within the target bound over time.
• Histogram with bounds - shows the distribution of each metric with its target bound.

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Further reading

https://theleftrough.com/head-movement-in-golf-swing/

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