TrackMan Data Parameter Definitions

With so many different data parameter which TrackMan is able to measure it can be difficult to remember all of them. Please see below definitions for all TrackMan data parameters for both Full Swing & Putting data.

Full Swing Data Parameters

 

Club Speed

The linear speed of the club head's geometric center just prior to first touch 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 Data Parameters

 

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

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

Club Path

The in-to-out or out-to-in movement of the club head's geometric center at the time of impact

Face To Path

The angle difference between the reported face angle and club path

Attack Angle

The up or down movement of the club head's geometric center at the time of impact

Launch Direction

The angle the ball starts right or left in relation to the target line

Launch Angle

The vertical angle the golf ball takes off at relative to the horizon and measured immediately after separation from the club face

Bounces

The number of bounces on the ground during the skid phase

Skid Type - Sliding displayed at Launch Angle

Ball with constant deceleration during skid phase (no bounces, sliding on the ground)

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

Entry Speed Distance

The straight-line distance between where the golf ball was launched from and the point of entry speed (1.68 mph)

Side

The total side distance from the target at the time the ball reaches entry speed

Distance

The total distance in a straight line from the starting point

Effective Stimp

The speed of the individual putt, based on the average roll deceleration

Flat Stimp

The calculation of green's general speed, based on the average roll deceleration of the individual putt

Elevation

The height difference from the ball's starting position to the point of entry speed

Break

The total side movement from the ball’s launch direction, at the time the ball reaches entry speed

Slope % Side

The average horizontal inclination of the surface

Slope % Rise

The average vertical inclination of the surface

 

Please see below some PDFs with further details & imagery to accompany these definitions.

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