What is a Tracker (NUMBERS) in the Sportsbox 3DGolf app?

The "Show data" tab is located at the bottom center of the 3D Analysis screen, positioned directly above the video playback timeline. To access it, simply tap the small black tab featuring the upward-pointing arrow (^). This will slide up the data panel, allowing you to view and measure various biophysical metrics throughout the golf swing.

Learn how to change your tracker. Click here.

Under the Show Data tab, you will find a list of “Trackers” and "Indicators" that you may select.

What is a Tracker?
- Trackers are the continuous body movements measured for specific body parts. Because a tracker measures movement throughout the entire motion, it contains many numerical values across the duration of a swing.
  - Example: Chest turn, pelvis sway, mid-hand sway, etc

What is an Indicator?

- An Indicator is the value of a Tracker captured at a specific moment in time during the swing. Unlike a Tracker, an Indicator represents a single numerical value.
  - Example: Chest turn at the top, max pelvis sway in backswing, max hand speed in downswing

CURRENT SPORTSBOX 3DGOLF NUMBERS AS OF MAY 2026

To populate speed indicators and trackers, swings MUST BE RECORDED IN-APP; imported swing videos will not work (nor will previously imported videos).
Make sure the recording is in a space with good lighting (preferably outdoors, not backlit) – please refer to our Sportsbox 3DGolf App: Do This, Not That article.

Checkout our Sportsbox Tutorial playlist:

TRACKER DEFINITIONS

TURN: Turn is rotation around the up-down axis, i.e. the Y-Axis. A positive value means that your body is turning (opening) towards the target and a negative value means your body is turning (closing) away from the target. All turn values are calculated with respect to the straight line through the two ankles as the 0 degree line.

Chest turn (FON&DTL) - Turn of the chest. It is negative when your chest is turned away from the target and positive when your chest is turned towards the target.
Pelvis turn (FON&DTL) - Turn of the pelvis. It is negative when your hips are turned away from the target and positive when your hips are turned towards the target.
X-Factor (FON&DTL) - The turn (in degrees) of the chest with respect to the pelvis, if chest is more open to the target than the chest it is positive, otherwise negative.

BEND: Bend - or Forward Bend - is rotation around the side-to-side axis, i.e. the X-Axis. A

positive value means that the segment is bending forward. If the segment was your chest, then your chest would be going towards the ground. A negative value means that the segment is bending backwards.

Chest bend (FON&DTL) - The forward/backward bend (tilt) of your chest. Vertical is zero and forward is positive, backward is negative.

SIDE BEND: Side bend is rotation around the front-to-back axis, i.e. the Z-Axis. A positive value means the trail side is dipping lower than the lead side; negative side bend means the trail side is getting higher than the lead side

Chest side bend (FON&DTL) - The sideways bend (side tilt) of your chest. Horizontal is zero tilt to the trail side is positive, otherwise negative.
Pelvis side bend (FON&DTL) - The sideways bend (side tilt) of your pelvis/hips. Horizontal is zero tilt to the trail side is positive, otherwise negative.

SWAY: Sway values are measured in inches. Sway shows the side-to-side path of movement. Toward the target is a positive value and away from the target is a negative value. Sway value is always 0" at address.

Chest sway (FON) - Lateral movement of the chest. It is set to 0 at address. Compared to address, the numbers are negative when your chest is laterally sliding away from the target and positive when your chest is sliding towards the target.
Pelvis sway (FON) - Lateral movement of the pelvis. It is set to 0 at address. Compared to address, the numbers are negative when your pelvis is laterally sliding away from the target and positive when your pelvis is sliding towards the target.
Hand sway (FON) - Lateral movement of your hands, specifically the mid point of your grip, is set to 0 at address. Compared to address, the number is negative when your hands move farther away from the target and positive when your hands slide closer to the target.
Head sway (FON) - Lateral movement of the head. It is set to 0 at address. Compared to address, the numbers are negative when your head is laterally sliding away from the target and positive when your head is sliding towards the target.
Lead knee sway (FON) - Lateral movement of the knee closest to the target. It is set to 0 at address. Compared to address, the numbers are negative when that knee is laterally sliding away from the target and positive when that knee is sliding towards the target.
Sway gap (FON) - The sway difference of your body. If the number is negative, your upper body (chest) is leaning away from your target while your lower body (pelvis) is closer to the target. If the number is positive, your upper body (chest) is leaning towards where your lower body (pelvis) is farther away from the target.
Trai knee sway (FON) - Horizontal movement of the trail knee. It is 0 at address. It is negative when the trail knee is more away from the target than at address and positive when it is more towards the target than at address.

Lift: Lift values are measured in inches. Lift shows the up-and-down path of movement. Negative value is a "drop" toward the ground - relative to the position of the point at address, and positive value is a lift up away from the ground. Lift value is always 0" at address.

Chest lift (FON) - Vertical movement of your chest. It is set to 0 at address. It is negative when your chest is dropping lower than it was at address and positive when it is lifting higher than where it was at address.
Pelvis lift (FON) - Vertical movement of your pelvis. It is set to 0 at address. It is negative when your pelvis is dipping below where it was at address (drop) and positive when it is moving higher than where it was at address (lift).
Hand lift (FON) - Vertical movement of your hands, specifically the mid point of your grip. It is set to 0 at address. The number is negative when your hands are dropping below where it was during set up and positive when lifted higher than your address position.
Head lift (FON) - Vertical movement of the head. The lift is neutral at 0 upon address. It is negative when the head drops below the address position and positive when it is lifted above the address position.

Flex: Flex values are measured in degrees. Flex shows the forward-and-backward bending or bowing movement of a body segment or joint (such as the spine, hips, or knees) along the sagittal plane. A positive value indicates "flexion" (bending forward or closing the joint angle), while a negative value indicates "extension" (bending backward or straightening/opening the joint angle) — relative to the position of that point at address. Flex value is always 0" at address.

Lead elbow flex (FON&DTL) - Angle created by your elbow closest to the target — this area is between the upper elbow and lower elbow on the lead side. 180 degrees indicates a straight elbow and anything less than 180 would indicate a bend of that elbow.
Lead knee flex (FON&DTL) - Angle created by your knee closest to the target — this area is between the upper leg and lower leg on the lead side. 180 degrees indicates a straight leg and anything less than 180 would indicate a bend of that knee.
Trail elbow flex (FON&DTL) - Angle created by your elbow farthest away from the target — this area is between the upper and lower arm on the lead side. 180 degrees indicates a straight elbow and anything less than 180 would indicate a bend of that elbow.
Trail knee flex (FON&DTL) - Angle created by your knee farthest away from the target — this area is between the upper leg and lower leg on the lead side. 180 degrees indicates a straight leg and anything less than 180 would indicate a bend of that knee.

Angle: Angle values are measured in degrees. Angle shows the orientation, tilt, or alignment of a club component or body segment (such as the shaft or wrist) relative to a specific viewpoint or geometric baseline. A positive value indicates a forward or steepened position, while a negative value indicates a backward, shallowed, or decreased position — relative to the baseline or address position. Angle values can vary depending on the specific component being tracked (e.g., Shaft DTL Angle or Lead Wrist Angle)

Lead wrist angle (FON) - Measures the wrist angle between your lead forearm and the club shaft. 180 degrees would indicate that there is no angle at all between your forearm and shaft. This tracker indicates the golfer's efficiency of wrist release.
Shaft angle (FON)- Angle of the club shaft from face-on view. The shaft is at 0 degrees when it's pointing down, perpendicular to the ground. It is negative in the backswing/downswing and positive in the follow through.
Shaft angle (DTL) - Angle of the club shaft from face-on view. The shaft is at 0 degrees when it's pointing down, perpendicular to the ground. It is negative in when the club is behind the hands and positive when the club head is ahead of the hands.
Swing Dir v Stance (DTL) - The angle between the impact zone swing plane, projected onto the ground, and the golfer's stance angle (ankle-to-ankle-line). For a positive value indicates an in-to-out swing direction and a negative value indicates out-to-in swing direction with respect to the stance.

Thrust: Values are measured in inches. Thrust shows the forward-and-backward path of movement along the down-the-line target line plane. Negative value is a movement "away" from the golf ball — relative to the position of the point at address, and positive value is a thrust "forward" toward the golf ball. Thrust value is always 0" at address.

Chest thrust (DTL) - The forward or backward movement of your chest. It is set to 0 at address. It is negative when the chest is pushed back/farther away from the ball than at address and positive when there's more movement forward, closer to the ball than at address.
Club thrust (DTL) - The forward or backward movement of the club head. It is set to 0 at address. It is negative when the club head is pulled back, positive when it is pushed forward.
Club hand gap (DTL) - The ahead or behind position of the club head with respect to the hands. A negative number indicates the club head is behind the hands and a positive number indicates the clubhead is ahead of the hands from a down-the-line view.
Hand thrust (DTL) - The forward/backward movement of your hands. It is set to 0 at address. It is negative when your hands are moved backward, away from the ball and positive when there's more movement towards the ball, with respect to their position at address.
Head thrust (DTL) - The forward/backward movement of your head. It is set to 0 at address. It is negative when your head is pushed back/farther away from the ball than at address and positive when there's more movement forward, closer to the ball than at address.
Pelvis thrust (DTL) - The forward/backward movement of your pelvis. It is set to 0 at address.It is negative when the pelvis is pushed back/farther away from the ball than at address and positive when there's more movement forward, closer to the ball than at address.

Liner Speed: Linear speed values are measured in miles per hour (mph). Linear speed shows the velocity of a specific point or club component (such as the mid-hands or club head) traveling along its moving path. A higher positive value indicates faster straight-line or resultant velocity — relative to a stationary state (0 mph at address). Linear speed values can be tracked continuously as a tracker or captured at peak performance moments, such as Max Hand Speed or Max Club head Speed.

Club head speed max (FON) - Shows the maximum linear velocity achieved by the club head during the downswing, which typically occurs at or immediately before the moment of impact.
Hand speed (FON) - The linear speed of a mid-point between the hands, on the shaft. This is a resultant speed so it is always positive.

Time: Time values are measured in seconds (s). Time shows the duration or interval required for a specific phase of the golf swing to occur (such as backswing time or downswing time).

Backswing time (FON&DTL) - The backswing phase of the golf swing from address to top of backswing.
Downswing time (FON&DTL) - The downswing phase of the golf swing from top of backswing to impact.
Follow through time (FON&DTL) - The follow through phase of the golf swing from impact to finish.
Total swing time (FON&DTL) - The full gold swing happens from address through finish.
Hand speed time max (FON) - Measurement of time to or time-elapsed from key points in the golf swing.
Lift time (FON) - The elapsed time from the point in the swing when lift is the lowest to impact. The smaller the number could indicate a more rapid lift or the maximum drop occurs closer to impact.
Tempo (FON&DTL) - The value obtained when one number is divided by another.
Wrist release percent (FON) - The point in the downswing when a golfer begins to "unhinge" the wrist.

Kinematic sequence: shows the timing, order, and rotational speed at which different body segments (pelvis, chest, lead arm) and the club shaft accelerate and decelerate during the downswing to transfer energy from the ground up.

Core gain factor (FON&DTL) - The ratio of the amount of angular speed between two segments in the kinematic sequence.
Max speed (FON&DTL) - The maximum value of angular speed (d/s) in the backswing or downswing for the kinematic sequence.
Transition (FON) - The point in the swing when a body segment or the club changes direction from the backswing to downswing.

INDICATOR DEFINITIONS

Clubhead speed max: The maximum speed of the club head in the downswing, usually at impact. (Pro-Driver: men's avg.= 110mph, women's avg.= 95mph)

Release factor: The ratio of the max club head speed to the max hand speed. (Pro-Driver: men's avg.= 5.0, women's avg.= 4.8). **This is like Sportsbox’s equivalent to the Smash Factor**

Core speed gain factor: The ratio of the max chest turn speed to the max pelvis turn speed. (Pro-Driver: men's avg.= 1.5, women's avg.= 1.4)

Shoulder speed gain factor: The ratio of the max lead arm swing speed to the max chest turn speed. (Pro-Driver: men's avg.= 1.4, women's avg.= 1.3)

Wrist speed gain factor: The ratio of the max shaft swing speed to the max lead arm swing speed. (Pro-Driver: men's avg.= 2.3, women's avg.= 2.0)

Shaft swing speed max: The maximum shaft swing speed in the downswing. (Pro-Driver: men's avg.= 2,277d/s, women's avg.= 1,903d/s)

Lead upper arm swing speed max: The maximum lead upper arm swing speed in the downswing. (Pro-Driver: men's avg.= 1,005d/s, women's avg.= 960d/s)

Chest turn speed max: The maximum chest turn speed in the downswing. (Pro-Driver: men's avg.= 725d/s, women's avg.= 716d/s)

Pelvis turn speed max: The maximum pelvis turn speed in the downswing. (Pro-Driver: men's avg.= 484d/s, women's avg.= 510d/s)

Hand Speed Max: The maximum hand speed in the downswing.

Hand speed max timing: The time from the maximum hand speed in the downswing to impact. (Pro Driver: men's avg = 69m/s; Pro Driver: women's avg = 93ms)

Backswing time: The time it takes to swing the golf club from address to top of backswing. (Pro-Driver: men's avg.= 0.82s, women's avg.= 0.96s)

Downswing time: The time it takes to swing the golf club from top of backswing to impact. (Pro-Driver: men's avg.= 0.26s, women's avg.= 0.29s)

Lead Wrist Angle at Arm Parallel: Lead wrist angle when the lead arm is horizontal in downswing.

Shaft Angle Face-On at Arm Parallel: Shaft face-on angle when the lead arm is horizontal in downswing.