Chest Turn
What it measures
Official Sportsbox-style indicator: Chest Turn @ [POS]—rotation of the chest segment around the vertical (spine) axis in the face-on 3D solve, reported at the phase named in your row (TOP, IMP, etc.). Sign convention: (−) closed to the target, (+) open. This is a core tracker in the six degrees of freedom for the torso and is available on Free, Player, and Player+ (Free tier includes a limited number of swings per month). X-Factor at the same phase is the angular difference between Chest Turn and Pelvis Turn (not the downswing speed ratio; see Core speed gain factor).
Units: degrees
Why it matters
Describes coil and delivery rotation—width, depth, and the hands path people feel as “turn.” Central to sequencing with the hips.
Vector matches drill videos to your focus—contact, shot shape, start line, D-Plane.
Related metrics
Pelvis Turn, Pelvis Turn @ TOP, X-Factor @ TOP, Speed Gain (Pelvis to Chest), Chest Side Bend, Chest Turn @ TOP, Chest Turn @ DCH, Chest Turn @ IMP