TECHNIQUE MAP

How this swing fills each biomechanics lane

Coaching feedback

What cleared, what to fix, and one cue to take onto court.

SESSION OVERVIEW

58% clear

14 solid·10 to fix·1 patterns

STROKE SCORES

178
254
361
461
561
695
793
863
967
1039
TONIGHT'S CUE

Shoulders stayed square

WHAT WE SAW

Your shoulders barely turned past your hips in the backswing. Without that coil, the arm has to force the pace.

THE FIX

Turn your shoulders early until your back partly faces the side fence.

DRILL

Hold the racket throat with your non-hitting hand and let it pull the racket back.

PER STROKE

WHAT LOOKED SOLID

Your arm had room at contact, with a healthy elbow angle at impact.

Arm at contact

Strong shoulder turn. Your shoulders coiled well past your hips, storing power for the swing.

Shoulder turn

The body led the arm. Energy flowed from the ground up: legs, hips, shoulders, then the racket.

Body leads the arm

The swing traveled low to high. You brushed up through the ball.

Low to high

LAB REPORT0 of 4 clear · 1 signals

SIGNALS DETECTED

  • Shoulders stayed square

KINEMATIC READOUT

Arm at contact

LOW CONFIDENCE

0°

Coach band 90–175°

Shoulder turn

SIGNAL

12°

Coach band 20–30°

Body leads the arm

LOW CONFIDENCE

0

Coach band Wrist last (3)

Low to high

LOW CONFIDENCE

0.00× spine

Coach band ≥ 0.10× spine

STROKE PHASES

Backswing32410.81s
Contact32710.91s100 ms
Follow-through34411.48s567 ms

INSTRUMENT READOUT

33 JOINTS
30 FPS
43.0s CLIP
IMAGE POSE
1 RELIABLE
POSE ONLY
10 STROKES