Understand your swing. Compare it with the professionals.

What it measures: The separation between shoulder rotation and hip rotation at the top of the backswing.

Why it matters: It describes how the upper and lower body coil relative to one another. More is not automatically better; mobility, control and the selected professional's pattern matter.

What it measures: The detected shaft angle relative to the image horizontal at the top of the backswing.

How to read it: A higher value is more vertical in the video frame; a lower value is flatter. Camera position and clear club visibility are important.

What it measures: How far the hip line has turned from its address reference by the top of the backswing.

Why it matters: It helps explain backswing depth, coil and how the pelvis supports the upper-body turn.

What it measures: How far the shoulder line turns from address to the top of the backswing.

How to read it: Interpret it together with hip rotation and X-Factor rather than as an isolated target.

What it measures: The position of the lead arm at the top, calculated from the lead shoulder, elbow and wrist landmarks.

Why it matters: It helps describe arm depth and structure. Handedness is applied so the correct lead side is measured.

What it measures: The joint angle formed by the lead shoulder, elbow and wrist.

How to read it: A larger angle generally indicates a straighter lead arm; compare with your chosen professional rather than chasing a universal number.

What it measures: The joint angle formed by the trail shoulder, elbow and wrist around impact.

Why it matters: It describes how the trail arm is delivering and extending through the strike.

What it measures: Pelvis rotation relative to address at impact.

Why it matters: It shows how open the lower body is at the strike and should be interpreted with torso rotation, mobility and camera alignment.

What it measures: Shoulder-line rotation from address to the impact frame.

Why it matters: Comparing shoulder and hip rotation helps describe body sequence and delivery position.

What it measures: Torso tilt from vertical at address, using the midpoint of the shoulders and hips.

Why it matters: It describes setup posture. The goal is a stable, athletic position that suits your body and club—not one universal angle.

What it measures: The average bend of both knees using hip, knee and ankle landmarks.

Why it matters: It indicates how athletic and balanced the setup is. Full visibility of the legs and feet improves reliability.

What it measures: A combined setup-quality score derived from posture-related measurements rather than a single body angle.

How to read it: Use it as a summary indicator, then inspect spine angle and knee flexion to understand what drove the score.

What it measures: Side-to-side movement of the estimated body center relative to the frame.

Why it matters: It helps identify excessive sway or insufficient pressure shift. Camera movement can distort this metric, so keep the phone fixed.

What it measures: Backswing duration divided by downswing duration.

How to read it: A value of 3.0 means the backswing took three times as long as the downswing. Use real-time video; slow motion or edited playback makes tempo unreliable.