STRIDE/LAB LAUNCH ANALYZER ↗
THE NEXT REP STARTS HERE

YOUR SPEED.
DECODED.

Turn sprint footage into a clearer picture of your mechanics. See your movement tracked, spot patterns, and get practical cues for your next session.

AI POSE TRACKING FRAME-BY-FRAME INSIGHTS FREE PROTOTYPE
ENGINEERED FOR THE TRACK / 001
01 / PERFORMANCE ANALYZER
Run the breakdown.
READY FOR FOOTAGE

Drop your sprint footage here.

Side-view clips work best. Keep your full body in frame
for the most useful analysis.

MP4 · MOV · WEBM   /   MAX 150 MB
YOUR FOOTAGE
Your clip stays on your device.
ANALYSIS WINDOW Automatically scans full clip
The whole clip is sampled. The analyzer picks the closest visible athlete in the start area, follows that athlete, and stops when it loses the track. Bystanders are ignored, not used as replacements.
FILMING TIP
Place the camera roughly hip-height, perpendicular to the lane. For starts, capture the set position and first few steps.
Loading pose model…0%
02 / YOUR BREAKDOWN

Movement, under the microscope.

Experimental scores derived from sampled video frames.

FULL-VIDEO MOTION SCAN
Detecting movement…

Move the marker if detection missed the actual start.

0:00End
FIRST TIME HERE? Angles describe the bends and lean visible in your video, measured in degrees (°). A straight knee is close to 180°, a right angle is 90°, and an upright torso is near 0° of lean. These are camera-view estimates, not automatically good or bad. See the illustrated-free angle guide ↓
FORM INDICATOR
--/100
ANALYSIS COMPLETE
Experimental heuristic, not a validated performance grade or prediction of sprint time.
MOVEMENT INDICATORS
04 / 04
These scores are experimental visual cues, not a race-speed prediction. Expand any metric to see what was measured and why.
03 / YOUR NEXT TRAINING SESSION

Your personal improvement plan.

COACHING START POINT

Based on the motion indicators in this clip, here is one area worth checking first, a few simple notes, and coaching videos related to the technique. These are suggestions to test, not a definitive diagnosis.

TOP AREA TO REVIEW
Analyzing…

Your one focus for the next rep:

Notes for your next session

    MADE FOR THIS ATHLETE · CUSTOM COACHING VIDEO

    Generate a coaching video from your own start.

    STRIDE/LAB creates a new, captioned video using your recorded frames, detected landmarks, estimated grades, and your specific review priority. It is not an existing YouTube tutorial. Download it and upload it to your own YouTube account if you want it hosted there.

    Ready after analysis. Video generation is local to this browser.

    This is an automated annotated coaching recap, not a photorealistic AI-created demonstration, and the experimental technique scores require caution. No upload to YouTube happens automatically.

    LIVE YOUTUBE MATCHING · SPECIFIC TO YOUR FORM REVIEW

    Find an actual YouTube video addressing your main issue.

    After each analysis, STRIDE/LAB creates a targeted search from your estimated movement pattern and requests real videos from YouTube. These aren't a preset library. The matching is based on estimated technique, not a confirmed diagnosis.

    Analyze a clip to find relevant videos.

    YouTube results can vary and are not individually vetted for coaching quality. Use a qualified coach to assess technique before changing training.

    PRACTICE PLAN · ONE PRIORITY AT A TIME

    Drills to explore with your coach.

    Based on the same observed movement pattern.

    These are technique exercises, not individualized medical or training prescriptions. Start gently and stop if anything hurts.

    Priority uses experimental on-screen scores, not validated biomechanics or evidence that changing this metric will improve sprint times. A single camera view, occlusion, and frame sampling can change the ranking.

    POSE TRACKING / SELECTED FRAME
    ON-DEVICE AI

    Select any sampled frame above. This is not every source-video frame; the full clip is sampled up to the analyzer limit. Frames outside the scored portion are labeled as such.

    Landmark lines are estimates. Angles vary with camera perspective, frame rate, lighting, clothing and occlusion. Video is processed in this browser; no server upload is used.

    FRAME-BY-FRAME FORM REVIEW

    EXPERIMENTAL FRAME GRADE
    --/100
    CHECKING LANDMARKS

    Choose an analyzed frame to see estimated movement angles.

    ✓ WHAT LOOKS PROMISING

    Choose a sampled frame.

    ↗ WHAT TO REVIEW NEXT

    Choose a sampled frame.

    The grade describes a sampled image, not an entire stride, race performance, or a validated coaching score. It may change rapidly with motion and camera angle.

    --°
    EST. TORSO INCLINE FROM VERTICAL
    03 / LEARN THE NUMBERS

    What do the angles mean?

    All angles are approximations from a two-dimensional camera view. The same athlete can show different numbers at different moments, so treat these as descriptions of movement, not universal targets.

    01

    Torso lean

    0° = upright · 35° = leaned forward

    How far your upper body tilts away from standing straight. In the first steps of a block start, athletes often lean forward as they accelerate and rise gradually.

    Try this:

    Push away from the blocks and let your body rise naturally. Don't force yourself to stay bent over.

    02

    Knee angle

    90° = bent · 180° = straight

    How open the knee joint looks between thigh and shin. It changes quickly as your leg pushes back and then swings forward. A larger angle is not always better.

    Try this:

    During early acceleration, think about pushing the ground away, not reaching your foot far forward.

    03

    Elbow angle

    90° = right-angle bend

    How bent your arm looks between upper arm and forearm. Arms bend and open naturally as they swing. There's no one perfect number for every frame.

    Try this:

    Let your arms swing front-to-back and keep your shoulders loose.

    04

    Knee recovery

    Measured as knee height relative to the hip

    How high your recovering knee travels after the push-off. This one is a relative height, not an angle, and depends heavily on sprint phase.

    Try this:

    Bring the leg through smoothly rather than exaggerating a high-knee drill during an actual sprint.

    THE PROCESS

    Less guessing. More intention.

    Built for sprinters who want useful feedback between training sessions. One good camera angle makes a real difference.

    01 / CAPTURE

    Film your rep.

    Get a clear side view of your acceleration or sprinting. Keep your head, torso and feet visible.

    02 / DECODE

    Track the motion.

    On-device machine learning estimates body landmarks across sampled video frames. No account needed.

    03 / REFINE

    Find a cue to test.

    Review rough movement indicators and practical cues with your coach. Retest with a matching camera angle.