ProTee Labs Definitions

Data Tiles

Ball Speed - Speed of the ball immediately after impact
Club Speed – Speed of the club just before impact
Smash Factor – Ball speed/club speed resulting energy transfer from club to ball. Efficiency of club to ball energy transfer
Total Spin – Amount of spin on the ball immediately after impact in revolutions per minute (RPM)
Spin Axis – The angular tilt of a ball resulting in ball curvature (degrees)
Back Spin – 2D vertical rotation of ball in RPM
Side Spin – 2D horizontal rotation of the ball in RPM
Face Angle (Face to target) – The direction the club face is pointing relative to target at impact (degrees)
Club Path – The direction the club is moving (right or left) at impact (degrees)
Face to Path – The direction the club face is pointing relative to the path at impact (degrees)
Angle of Attack – The direction the club is moving (up or down) at impact
Static Loft – Fixed loft in a golf club
Dynamic Loft – True loft on a club (vertical orientation) at the time of impact
Spin Loft – The difference between the dynamic loft and angle of attack affecting ball spin
Lie Angle – How level the club is at impact (toe up or down)
Apex - Peak height of ball flight
Descent Angle – Angle which the ball approaches the ground

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