FULL MARKS
Arm at contact
Match Point AI
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STROKES IN THIS CLIP
0SCORE
Jose Valencia’s technique report
Forehand
Strong technique, with a little room to grow.
Derecha nota 88. Tu giro de hombros fue corto, desde la preparación hasta el final. Sin enrollar y soltar del todo, el brazo tiene que forzar la velocidad. Gira los hombros hasta que la espalda mire en parte a la valla lateral y luego rótalos hasta el final.
88
MAIN FIX
Short shoulder turn
Reading 129°. Fix line 140°. Ideal 180°. Points off: 12−12
129°
WHAT WE SAW
Your shoulder turn was short, from the backswing through to the finish. Without a full coil and release, the arm has to force the pace.
THE FIX
Turn your shoulders until your back partly faces the side fence, then rotate them through to the finish.
DRILL
Hold the racket throat with your non-hitting hand and let it pull the racket back.
Why 88, not 100
Where the points went, check by check, from this clip’s readings.
- 129°
Fix line 140°Ideal 180°
129° · ideal ≥ 180°
Short shoulder turn · fix card above
- 142°
Fix line 85°Ideal 115°
142° · ideal ≥ 115°
We could not track your wrist well enough to judge the low-to-high path.
Keep your full body and racket in the frame.
WHAT EARNED FULL MARKS
These checks reached their ideal range on this clip. Keep doing that.
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How this was measured
We tracked 33 body points on every frame of this clip. Each check is judged against coaching ranges from tennis biomechanics research, and on clips with several strokes each reading is the median across them. No ball tracking.
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