What, how, and when we track.
Full Swing
Club Speed
The linear speed of the club head’s geometric center just prior to first contact with the golf ball.
Attack Angle
The up or down movement of the club head’s geometric center at the time of maximum compression.
Dynamic Loft
The vertical angle of the club face at the center-point of contact between the club and ball at the time of maximum compression.
Club path
The in-to-out or out-to-in movement of the club head’s geometric center at the time of maximum compression.
Face Angle
The direction the club face is pointing at the center-point of contact between the club and ball at the time of maximum compression.
Face to Path
The angle difference between the reported face angle and club path.
Spin Loft
The angle between the direction of the club head’s movement and the club face’s orientation at the time of maximum compression.
Swing Plane
The vertical angle between the plane created by the club head’s geometric center movement and the horizon.
Swing Direction
The angle between the base of the plane created by the club head’s geometric center movement and the target line.
Low Point
Distance from the club head’s geometric center to the lowest point on the swing arc at the time of maximum compression.
Impact Height
The vertical impact location distance relative to the center of the face.
Impact Offset
The horizontal impact location distance relative to the center of the face.
Dynamic Lie
The angle of the lower portion of the shaft relative to the waterline at impact.
Ball Speed
The speed of the golf ball’s center of gravity immediately after separation from the club face.
Smash Factor
The ratio between the measured ball speed and measured club speed.
Launch Angle
The vertical angle the golf ball takes off at relative to the horizon and measured immediately after separation from the club face.
Spin Rate
The rate of rotation of the golf ball about the imaginary line the golf ball rotates around measured immediately after separation from the club face.
Launch Direction
The horizontal angle the golf ball takes off at relative to the target line and measured immediately after separation from the club face.
Spin Axis
The angle relative to the horizon of the imaginary line that the golf ball rotates around and is measured after separation from the club face.
Height
The maximum height or apex of the trajectory measured relative to the elevation at which the golf ball was launched.
Curve
The horizontal side movement perpendicular from the launch direction to carry side.
Landing Angle
The angle the golf ball lands at relative to the horizon and at a point that has the same elevation as where it was launched.
Carry
The straight-line distance between where the golf ball was launched from and where it crosses a point that has the same elevation.
Side
The perpendicular distance between the target line and where the trajectory crosses a point that has the same elevation as where the golf ball was launched.
Total
The straight-line distance between where the golf ball was launched from and its calculated resting position.
Side Total
The perpendicular distance between the target line and the golf ball’s calculated resting position.
Putting
Club Speed
The speed the club head is traveling immediately prior to impact.
Backswing Time
The time the club head is traveling away from the ball.
Stroke Length
The distance the club head is pulled back from the ball in the backswing.
Forward Swing Time
The time the club head is traveling towards the ball until impact.
Tempo
The Backswing time divided by the Forward swing time.
Dynamic Lie
The angle of the shaft relative to the waterline at impact.
Launch Direction
The angle the ball starts right or left in relation to the target line.
Ball Speed
Initial ball speed immediately after separation from the putter face.
Skid Distance
The distance the ball is bouncing/sliding until it starts to roll.
Roll Speed
Speed at the point where the ball starts to roll.
Speed Drop
The percentage drop in speed from Ball Speed to Roll Speed.
Roll %
The amount of roll on the total putt distance.
Effective Stim
The speed of the individual putt, based on the average roll deceleration.
Side
The total side distance from the target at the time the ball reaches entry speed.
Break
The total side movement from the ball’s launch direction, at the time the ball reaches entry speed.
Distance
The total distance in a straight line from the starting point.
Attack Angle
The up or down movement of the club head’s geometric center at the time of impact
Club Path
The in-to-out or out-to-in movement of the club head’s geometric center at the time of impact
Face Angle
The direction the club face is pointing at the center-point of contact between the club and ball at the time of impact
Face to Path
The angle difference between the reported face angle and club path
Entry Speed Distance
The straight-line distance between where the golf ball was launched from and the point of entry speed (1.68 mph)
Elevation
The height difference from the ball’s starting position to the point of entry speed
Slope %
The average horizontal inclination of the surface
Slope % rise
The average vertical inclination of the surface
Stimp (flat)
The calculation of green’s general speed, based on the average roll deceleration of the individual putt
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