Effective Arm Timing: The throwing arm consistently gets into a strong, externally rotated position at front foot strike. This timing is a crucial foundation that reduces stress on the elbow and shoulder.

Controlled Balance Point: The initial phase of the delivery, from the wind-up to the peak of the leg lift, demonstrates good balance and body control, setting up a stable base to work from.

Limited Hip-Shoulder Separation: The primary area for improvement is the lack of separation between the hips and shoulders. The upper body and lower body rotate too closely together, significantly limiting rotational power and velocity potential.

Premature Glove-Side Pull: An aggressive glove-side pull initiates early shoulder rotation and causes a lateral trunk tilt. This disrupts posture, pulls the head off-line, and hinders the efficient transfer of energy.

Insufficient Front Leg Bracing: The lead leg lands ‘soft’ with a bent knee, which absorbs force instead of acting as a firm block to accelerate the rotation of the trunk. This results in a significant loss of kinetic energy.

Efficient Deceleration at the Wrist: The wrist and hand follow the arm’s path correctly, with efficient pronation through the deceleration phase. No primary faults are noted in this segment of the chain.

Stable Rear-Foot Drive: The rear foot shows adequate stability during the drive phase, giving the delivery a workable base to build a safer sequence from.

Collapsing Lead Leg (‘Soft Front Side’): The lead leg fails to brace firmly at foot plant, so momentum leaks instead of transferring up the chain. The soft block also worsens deceleration, adding stress to the posterior shoulder and back.

Premature Trunk Rotation: The trunk and shoulders open early, in unison with the hips, eliminating hip-shoulder separation. This forces the arm to create velocity in a high-risk way rather than through stored elastic energy.

Arm Drag & Elbow Stress: The throwing arm is late, with the hand behind the elbow at foot plant. Combined with premature trunk rotation, this drives a dangerous valgus torque on the medial elbow (UCL) — the report’s primary red flag.