Sample Serve Analysis
This is a real analysis produced by Tennis HUD. Upload your own serve and get the same level of detail.
Annotated Video
The AI overlays a biomechanical skeleton on every frame, tracking 33 body landmarks in real time. Joint angles are displayed live as the video plays. The trophy pose is highlighted in gold.
Trophy Pose Detection
The trophy pose is the loaded position just before forward swing — tossing arm fully extended, hitting arm cocked behind. Tennis HUD automatically detects this critical moment and measures your joint angles.
Full extension at trophy pose means a consistent, high toss.
A bent hitting arm stores elastic energy for racket head speed.
Straighter front leg provides a stable base during the toss.
Deep knee bend drives upward force through the kinetic chain.
What This Analysis Reveals
The tossing arm (left elbow at 162.3°) is close to full extension but not quite at the 170° pro benchmark. A few more degrees of straightening would place the ball higher and more consistently in the strike zone.
The loading leg (right knee at 118.2°) shows good knee bend but could go deeper. Professional players typically reach 100–110° to generate maximum upward drive. Gaining 10° more bend here translates directly into more power and spin.
The hitting arm (right elbow at 78.4°) is well-positioned — close to the 75° reference, indicating good racket preparation and stored elastic energy.
Every Analysis Includes
Frame-by-Frame Joint Angles
Elbow and knee angles tracked on every frame, synced to video playback.
Automatic Trophy Pose Detection
The AI finds the exact frame where you reach trophy pose and measures your form.
Annotated Video
Skeleton overlay with color-coded joints. Trophy pose highlighted in gold.
Pro Comparison
Side-by-side synchronized playback against a professional serve.
Frame Gallery
Scrub through key frames to study specific moments of your serve.
Progress Tracking
Upload new videos over time and watch your angles improve session by session.
Ready to Improve Your Serve?
Upload your serve video and get AI-powered analysis in minutes. Free to try.