Golf swing analysis, one fix at a time
Upload one swing. SwingVantage names the fault costing you the most strokes, with drills and a 7-day plan built around it.
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Sample report
SAMPLE · GOLF · DOWN-THE-LINE
Sample score
Primary fix identified
Shallow the downswing so the club approaches from the inside.
Out-to-in club path producing a slice
- Face to path 4.0° openEstimated · 3 frames
- Club path Out-to-inEstimated · 3 frames
- Tempo ratio 2.8:1Estimated · full swing
The faults
The faults that cost you most
Fault 01
Over-the-top slice
Ball starts left and curves hard right. Usually sequencing, not grip.
Fault 02
Early extension
Hips push toward the ball in the downswing — blocks and thin contact.
Fault 03
Casting
Wrist angle released early — speed spent before the ball.
Your report names the one that costs you most.
Upload
One swing video from your phone.
One fix
Your top fault, drills, and a 7-day plan.
Retest
Re-upload on day 7 and measure the change.
Seven sports · one engine
Built for your sport
Golf Metrics SwingVantage Analyzes
These numbers come from your launch-monitor data (file import, screenshot or manual entry) — a swing video does not measure them. Each is compared to tour-calibrated benchmarks for your club and skill level.
Ball Speed
Measures energy transfer from club to ball. Target smash factor 1.45–1.50.
Club Speed
Raw clubhead velocity. Foundation for distance calculation.
Launch Angle
Vertical angle off the face. Optimal 10–14° for driver.
Spin Rate
Backspin and sidespin govern curve and descent. High spin = ballooning shots.
Club Path
In-to-out vs. out-to-in path is the #1 factor in shot shape.
Face Angle
Where the face points at impact. Determines starting direction.
Face-to-Path
The gap between face and path creates draw or fade. ±2° is considered neutral.
Attack Angle
Negative (hitting down) adds spin and reduces distance on driver.
Dynamic Loft
Actual loft at impact — affected by shaft lean and attack angle.
Smash Factor
Ball speed ÷ club speed. Measures strike quality and sweet spot consistency.
Proof, not just claims
Here's a worked Golf example on sample data — the same shape your real report takes. We show the evidence, the confidence, and what we honestly can't know.
Example diagnosis
Out-to-in club path with a face open to that path — a classic slice pattern.
Top fix: Shallow the downswing so the club approaches from the inside. Fix the path first; the face is far easier to square once the path is neutral.
What SwingVantage uses
- In the down-the-line view, the club drops outside the target line in transitionEstimated — how to read this label
- Reported ball flight (starts left, curves right) matches an out-to-in path with an open faceInferred — how to read this label
- Upper body appears to start the downswing before the lower body (over-the-top)Inferred — how to read this label
What it can't know
- Exact club path and face angles in degrees (needs a launch monitor)
- Whether equipment (shaft, lie, loft) is contributing
- Anything about wrist or shoulder health — stop if you feel pain
How you'll measure progress
On day 7, re-film one driver swing from the same down-the-line angle and distance. Compare transition (does the club drop inside now?) and start line. Re-record every 1–2 weeks to track the trend, not a single swing.
Coach summary
Player presents an out-to-in path with an open face on the driver. Priority: shallow the transition before any face/grip work. Drills assigned: gate, pump-and-drop, split-hand release. Retest in 7 days from a fixed camera angle.
What do the confidence labels mean?
Illustrative example
Sample data, not your swing — used on demos and the sample reports so you can see the format before you start.
Heuristic estimate
A smart, data-backed read from limited input (a self-report or a single video). It is honest about being an estimate, and it sharpens every time you add a swing.
Measured
Read directly from launch-monitor or sensor data you import, or from a verified, calibrated multi-camera setup. A phone video is never labelled measured — what we read from it is an estimate.
We always show you which one you are looking at, and never present an estimate as a measurement.
Your swing, decoded — coaching in your pocket. SwingVantage reads your swing and gives you the one fix that matters most, with data-backed guidance you can use today. Its findings are estimates that get sharper with every swing you add. For injury concerns or advanced technique, pair it with a coach — you'll show up to those sessions already ahead.
Your data stays yours
- Sign in and your data is saved to your own private account and synced across your devices; without an account it stays on your device. Either way it is yours alone.
- Swing videos are analyzed in your browser and are not shared publicly by default.
- You can export everything SwingVantage knows about you at any time.
- You can delete any record — or everything — instantly from Settings.
What SwingVantage can and can't tell you
Every result carries the same honest label everywhere you see it — so you always know what's precise, what's an estimate, and what to trust for your next session. Our free engine does the everyday read; optional AI depth is coming later.
Measured
Read straight from your launch monitor or sensor data. The most precise number we can show.
Estimated
Our free coaching engine compares your swing to research benchmarks for your sport and level. Trustworthy direction you can train on today — no AI required.
Inferred
AI that reads your video frames is coming later — optional extra depth on top of the free read. Single-camera limits will still apply.
Self-reported
Based on what you describe yourself. Useful context, and as accurate as the details you share.
Frequently Asked Questions
- What launch monitor data does SwingVantage accept?
- SwingVantage accepts CSV exports from FlightScope, TrackMan, Foresight GCQuad, Garmin Approach, Rapsodo, and SkyTrak. You can also upload a screenshot and enter data manually.
- How does the AI golf swing analysis work?
- SwingVantage analyzes your data against research-based benchmarks, then generates personalized drill recommendations and practice plans based on your specific pattern and level.
- What golf metrics does SwingVantage analyze?
- From your imported launch-monitor data, SwingVantage analyzes ball speed, club speed, launch angle, spin rate, club path, face angle, face-to-path, attack angle, dynamic loft, smash factor, carry distance, and impact location. A swing video does not measure these ball and club numbers; it gives a separate, labeled read of how your body moved.
- Is my swing data private?
- Yes. Motion Lab analyzes your swing video in your browser, and the video file is not uploaded for analysis. We never sell your data. You can delete your account and its data at any time; residual copies in encrypted backups roll off within about 30 days.
- Do I need a launch monitor to use SwingVantage?
- No. You can upload a swing video for video-based analysis, or use the manual entry tools to log sessions from any source — even a simple radar gun or range session.
Guides for your game
- How to Fix a Golf Slice (Beginner-Safe Guide)A slice is almost always an out-to-in club path with an open face. Here is how to diagnose it, three beginner-safe drills to fix it, and a two-week practice plan.
- Why Do I Slice My Driver? (And How to Stop)You slice the driver more than your irons because its length and low loft magnify an open-face, out-to-in strike. Here is the real cause and how to fix it.
- Launch Monitor Analysis: What Your Numbers MeanConfused by your launch monitor data? Learn what club speed, smash factor, spin, launch angle, and path tell you — and how to turn it into a practice plan.
- How to Practice Golf at Home (No Range Required)You can make real progress at home with mirror work, slow-motion reps, and short-game touch drills. Here is a safe, equipment-light home practice plan.
- High-Handicap Swing Analysis: Where to Actually StartHigh handicappers improve fastest by fixing contact and the big miss first — not by chasing tour positions. How to find your one priority and a plan.
- How to Stop Topping the Golf BallTopping the ball comes from your low point being behind the ball or your body rising through impact. Here is how to diagnose it and three drills to fix it.
- How to Stop Shanking the Golf Ball (Causes and Fixes)A shank comes off the hosel when the clubhead moves out toward the ball. How to find the cause — setup, path, or balance — and drills to stop it.
- How to Chip in Golf: A Simple, Repeatable MethodCrisp chipping comes from a narrow stance, weight forward, and letting the wedge brush the grass. Where to play the ball, how to set up, and drills.
- How to Break 80 in Golf: A Focused Practice PlanBreaking 80 is won with greens in regulation, a sharp wedge game, and few three-putts — not raw distance. A focused practice plan and what to fix first.
- Golf Swing Tempo: Find Your RhythmGood golf tempo is a consistent backswing-to-downswing ratio — not swinging slowly. How to fix a rushed transition and groove a repeatable rhythm.
- How to Stop Coming Over the Top (Beginner-Safe Guide)Coming over the top means the club swings out and across the ball from the top — the cause behind most slices and pulls. How to diagnose and fix it.
- How to Fix a Hook: Stop the Ball Curving LeftA hook happens when the club face is closed relative to your path at impact, so the ball curves hard left. Here is how to diagnose and fix it with three drills.
- How to Stop Hitting It Fat (Chunked Irons) in GolfA fat shot happens when the club hits the ground before the ball — usually a low point behind the ball. Here is how to diagnose and fix it with three drills.
- How to Break 90 in Golf: A Simple Practice PlanBreaking 90 is about eliminating double bogeys and three-putts, not adding distance. Here is a focused practice plan and the misses to fix first.
- How to Hit Your Irons ConsistentlyIron consistency is three separate problems: face contact, distance repeatability, and lie adaptation. Here is how to tell which one is costing you shots.
- Wedge Distance Control: How to Dial In Your YardagesWedge distance comes from controlling backswing length, not swinging harder. Here is the clock system and how to build repeatable wedge yardages.
- How to Hit a Driver: Tee It High and Hit UpThe driver is the one club you hit UP on: tee it high, play it forward, and catch it on the upswing for distance with low spin. Here is how to groove it.
From the blog
- How to Use Golf Swing Video Analysis (Step-by-Step)Golf swing video analysis works best when it turns one clear pattern into one fix, one practice plan, and one retest.
- How to Fix a Golf Slice: The 5 Most Common CausesA slice is the most common fault in amateur golf. Here are the 5 root causes — and what actually fixes them.
- What Is Smash Factor and Why Does It Matter?Smash factor measures how efficiently your club transfers energy to the ball. Here is what the numbers mean and how to improve yours.
- How to Read Your Launch Monitor Data (And What to Do With It)Launch monitors produce a lot of numbers. Here is what each metric actually means, which ones matter most, and the most common interpretation mistakes.
Find your one fix
One upload. One fix. One plan. One retest.
Free · Private by default