BowlFast.AI doesn't guess. Every metric comes from computer vision analysis of your actual video — not estimates or generalised averages. What you see is what your body is actually doing.
Log in for free to save and analyse many bowlers. Guest runs can still complete a back + side report in this browser, but they are not stored in Past analyses.
Frame-by-frame as you scroll
BowlFast.AI uses advanced computer vision to analyze every frame of your bowling action. Get instant biomechanical insights and actionable coaching feedback.
Record your fast bowling delivery from any angle. We analyze everything from your run-up to follow-through.
Our computer vision model detects key biomechanical metrics frame-by-frame with frame-level precision.
Receive plain-language coaching feedback with specific drills to address any technical issues we find.
Compare your metrics over time. See exactly where you've improved and where to focus next.
BowlFast.AI runs specialised pipelines for side-on and back-view footage — each angle unlocks a different set of biomechanical metrics.
Filmed from the bowling-arm side. Captures the kinetic chain from run-up through release — the levers that actually generate ball speed.
Approach momentum into the crease — one of the strongest drivers of pace.
Back-foot to front-foot stride as a percentage of height, checked against efficient bracing range.
How firmly the front leg holds and extends from front-foot contact into release.
Chest drive over the front leg, plus how deep the bowling arm loads behind the trunk.
Estimated pace from tracked ball flight after the ball leaves the hand.
Filmed from behind, looking down the pitch. Tracks whether your body stays on line — and flags the patterns linked to back and side injuries.
Side-bend at release — a key load marker for the lower back.
Coil between hips and shoulders through the delivery stride.
Shoulder counter-rotation between back-foot and front-foot contact.
Whether the head and hips drift off the pitch line as the ball is released.
How straight the approach stays, and whether the exit continues down the target line.
Fast bowlers miss more cricket than any other player type. BowlFast.AI flags the mechanical patterns that lead to lumbar stress fractures, side strains, and knee injuries — before they happen.
Analysis happens at the individual frame level — not averaged across the delivery. You see exactly what your spine, hips, and shoulders are doing at BFC, FFC, and release.
No jargon. Every metric comes with a plain-language explanation, a risk rating, and a specific drill to address it — ready to take straight into training.
Train like an international player, with or without a coaching team. Just your phone, your action, and the data.
Every delivery gets full biomechanical breakdown. Here's a real example of what your analysis will show:
Fast bowlers miss more cricket than any other player type. BowlFast.AI flags the mechanical patterns that lead to lumbar stress fractures, side strains, and knee injuries — before they happen.
Analysis happens at the individual frame level — not averaged across the delivery. You see exactly what your spine, hips, and shoulders are doing at BFC, FFC, and release.
No jargon. Every metric comes with a plain-language explanation, a risk rating, and a specific drill to address it — ready to take straight into training.
Moderate lateral flexion at release (42.3°). Recommend wall-lean posture drill and anti-lateral-flexion core holds to reduce lower back load.
Follow-through direction is efficient — good weight transfer toward target line.
Stride pattern variable: final stride 8% shorter than reference. Work on marker-tape stride consistency drills.