Ball Launch Data describes the measured conditions of the golf ball immediately after impact and the calculated results of those conditions as the ball travels through flight.

The launch condition is described by a combination of multiple measured ball launch parameters. The combination of these measured characteristics determines the ball’s trajectory, peak height, descent angle, carry, and total distance.

Foresight Sports launch monitors use high-speed, high-resolution cameras to capture ball launch conditions with a high degree of accuracy. Ball flight results are calculated by algorithm based on those measurements. 

Diagram showing a golf ball at impact with labeled tilt axes and backspin direction, illustrating ball spin orientation and a blue trajectory path curving downrange within a green field outline.

Launch Condition Overview

The launch condition is defined by the following measured ball launch parameters:

  • Ball Speed

  • Total Spin

  • Launch Angle

  • Azimuth

  • Spin-Tilt Axis

The combination of these measurements determines:

  • Ball Trajectory

  • Peak Height

  • Descent Angle

  • Carry

  • Total Distance

Ball Launch Condition Metrics

Ball Speed

The measurement of the golf ball’s velocity measured just after impact. Ball Speed is the main component in generating distance. 

Side-view diagram of a golf club striking a golf ball off a tee, with red arrows indicating forward ball speed immediately after impact.

Launch Angle

The initial vertical angle of ascent relative to the ground plane, measured in degrees. Launch Angle, combined with ball spin and speed, determines carry and total distance. 

Azimuth

Also known as side angle or deviation angle. The initial horizontal angle relative to the target line. Azimuth, combined with side spin, determines the final ball position down range relative to the target line. 

Top-down diagram of a golf club striking a ball, showing three possible ball start directions labeled pull left, straight, and push right to illustrate launch azimuth relative to the target line.

Side Spin

A component of total spin that defines ball curvature or shot shape. Side Spin is also related to the Spin-Tilt Axis.

Side Spin.png

Back Spin

A component of total spin that defines ball lift and trajectory.

Side-view diagram of a golf club striking a ball on a tee, with red circular arrows showing the ball rotating backward to illustrate backspin influencing lift and carry distance.

Total Spin

The total amount of spin around the Spin-Tilt Axis that creates curvature and lift.

Close-up diagram of a golf ball with red curved arrows wrapping around it, illustrating total spin as a combination of backspin and side spin acting on the ball.

Spin-Tilt Axis

The axis that the golf ball rotates around to create shot curvature and lift.

  • When the Spin-Tilt Axis is oriented to the left (looking down range), the ball’s trajectory moves from right to left.

  • When the Spin-Tilt Axis is oriented to the right (looking down range), the ball’s trajectory moves from left to right. 

Ball Flight Result Metrics

Ball flight results diagram showing a side view with labeled total distance, carry, peak height, roll, and ground plane, along with a top-down view illustrating shot curvature and offline distance from the target line.

Peak Height

The apex of the ball’s trajectory measured from the ground plane.

Carry

The total distance of flight produced by the initial launch condition.

Total Distance

The combined ball flight distance with bounce and roll.

Offline

The end position distance right or left measured from the target line.

How These Measurements Work Together

Ball launch measurements and calculated ball flight results function together as a system. The combination of:

  • Ball Speed

  • Launch Angle

  • Azimuth

  • Spin Characteristics

Determines:

  • The shape of the ball’s flight

  • How high the ball travels

  • How far the ball carries

  • Where the ball finishes relative to the target line 

For typical and optimized performance benchmarks based on these measurements, reference the Ball Launch Data: Performance Reference Tables.

FAQs

What defines a launch condition?
A launch condition is defined by Ball Speed, Total Spin, Launch Angle, Azimuth, and Spin-Tilt Axis.

Are Peak Height, Carry, and Total Distance measured or calculated?
They are calculated by algorithm based on measured launch data.

What determines shot curvature?
Shot curvature is defined by Total Spin and the orientation of the Spin-Tilt Axis.

Performance Reference Tables

For optimized and typical ball launch performance benchmarks, including driver-only optimized launch data and slower and faster swing speed reference tables, see: Ball Launch Data: Performance Reference Tables

Related Measurement Systems

For club delivery measurements that directly influence ball launch conditions, see: Club Head Data: Measurements & Definitions

Data Accuracy & Support

If your ball launch data appears inconsistent, incorrect, or does not reflect expected results, follow the standard reporting process outlined here: How to Report Incorrect or Inaccurate Data

This ensures your data can be reviewed properly with the required screenshots, session files, and setup details.