Video
Filmed at 240 fps, plays 8× slower
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Frame 0
Shot #1 · Forehand · 6-axis sensor
Every swing. Reconstructed.
Raw gyroscope and accelerometer data from the racket, lined up with slow-motion video and rebuilt as a 3D swing.
Sensor readings
400@ 416 Hz
Swing window
0.96s
Peak rotation
–°/s
Ball impact
#200reading
3D swing
Drag to look around
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Rotation – °/s
Racket · sensor
Ball · contact point
Reading0
Real time0 ms
Video frame0
Phase–
Impact
Swing phases detected from the sensor data
Space plays · ← → step one reading · I jumps to impact
Forward swing
–ms
from the dip in rotation to impact
Racket head speed
–km/h
estimate: rotation × 0.6 m
Racket face at impact
–
–
Swing path at impact
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–
Check against the video
How closely the 3D racket matches the video, and controls to fine-tune it
Average handle error –
Check against the video
How closely the 3D racket matches the video, and controls to fine-tune it
Handle direction vs. video, at five moments
Sensor data
Click a chart to jump to that moment