A swing. Its evidence. Its limits.
Explore the same interactive player used for customer reviews. Play the swing, select a finding and inspect the movement that supports it.
This is demonstration footage, not a customer testimonial or an endorsement. The golfer's height and shot outcome are unknown. Lengths therefore show an estimated range; the original slow-motion footage was adjusted for playback, so this example does not validate timing.
The source is CC0 footage by Hut2026 on Wikimedia Commons, cropped and rendered with the face blurred. A customer's footage stays private unless they separately permit publication.
See a sample analysis
A demonstration swing (CC0 demonstration: down-the-line iron swing; height and shot outcome unknown), with the face blurred. These findings come from the analysis system. Select a finding to see its evidence on the swing.
No movement past the guides in this swing.
What’s going well
What to take from this review
Movement within a general guide does not prove an ideal swing or guarantee a good shot. Findings describe this clip. A suggested practice experiment is a starting point to test, rather than a proven correction or a diagnosis of ball flight.
Film another swing from the same spot, or from the other camera angle, to confirm what this one showed.
Measurement confidence and reference basis
- Held finish: Held. Confidence: medium. Tracking 91% of the hand points; hand motion after impact. Basis: 2D pose, down the line view.
- Hips back (no early extension): ≈ 2 cm away from the ball. Confidence: medium. Tracking 100% of the measured points; within the guide. Basis: 2D pose, down the line view; range for a 150–200 cm golfer.
- Staying in posture: ≈ 0–1 cm up. Confidence: medium. Tracking 100% of the measured points; within the guide. Basis: 2D pose, down the line view; range for a 150–200 cm golfer.
- Posture: Bent forward 31°. Confidence: medium. Tracking 100%; a projected angle that shifts with camera height. Basis: 2D pose, down the line view; projected angle. Seen down the line; reads a few degrees differently with camera height. A general guide, not a personal correction.
- Knee flex: 18° (trail knee). Confidence: medium. Tracking 100%; a projected angle that shifts with camera height. Basis: 2D pose, down the line view; projected angle. Seen down the line. A general guide, not a personal correction.
What this analysis cannot establish
- Measured in 2D from one camera per view: positions are flat projections, not 3D rotation, pressure or force.
- One swing: each finding describes this swing. Whether it's your usual pattern needs more swings; confidence is capped at medium and a practice experiment starts that record.
- Judged against the coach's general guides for every golfer, not a validated standard and not your personal baseline.
- Core phases use body-event heuristics; intermediate checkpoints are linear time interpolations, not measured club positions. Their event accuracy has not been independently established; pose sample spacing is not a phase-error bound.
- The club isn't tracked automatically yet, so club measurements are not reported.
- No ball-flight numbers: carry, spin, launch, ball speed and face-to-path need a launch monitor.
- Your height wasn't given, so lengths are the range for a 150–200 cm golfer, and a finding is only called when it holds across that whole range.
No ball speed, carry, spin or curve direction is inferred from this phone video. Measurements are two-dimensional camera estimates. Impact and other phases are estimated.