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OpenSG computes Strokes Gained on every shot — no equipment, just your phone — then shows the Strokes Gained of every aim point, so you can see which target wins before you swing. Stop guessing. Start choosing your miss instead of chasing your best shot.
Free while we're in beta. Practice stays free; real-round tracking moves to a subscription later.
Use it today — right from any browser on your phone. OpenSG is fully functional in the browser*. Native apps are coming to the Apple App Store and Google Play Store this fall.
* Everything except locked-screen GPS tracking and iPhone Pro LiDAR green scanning, which need the native app. Details
Every number you'd want over the ball — plus the tools to plan, practice and compete.
Aim line and break for the putt, from crowd-built green contours.
Wind and air density folded into every plays-like number.
Your real shot spread drawn on the hole — not a generic guess.
The expected score from any spot on the course.
The app marks the spot that gains the most strokes — then move it and watch the odds shift, so you never guess your target.
Per-hole notes with aim lines and "don't-hit" markers.
A Rules-legal view that hides the assistance competition doesn't allow.
Tune your whole bag for altitude and temperature before a trip or event.
Play a real course from the driving range or practice facility.
Study and strategize every hole before you tee off.
Putting, approach and in-play drills scored on Strokes Gained.
Fix every shot on the map — drag, add or reclub — after each hole or the whole round, with GPS breadcrumbs to recover shots you forgot to log.
A private coach account gives you the same full access to your players' data — every round, both handicaps and the per-category Strokes-Gained breakdown — without the lineup optimizer and team tools built for squads. Set it up yourself in a minute — no waiting on us.
Just the phone in your pocket — iPhone or Android.
Tee to green to putts, benchmarked to the level you choose.
How high school, college, and pro coaches pick golf lineups — from scoring-average spreadsheets to the analytics behind Ryder Cup pairings.
Read more →
Most missed putts aren't a bad stroke. They're a bad read, and they leak to the low side. Here's why amateurs under-read break, and how a LiDAR scan of the green's real slope shows you the line your eyes can't see.
Read more →
Not the pin — the smart spot that gives up the fewest strokes over a round. Here's how OpenSG scores every target with your own dispersion and strokes gained, from a dogleg tee shot to a lay-up short of a creek.
Read more →Strokes Gained is where OpenSG starts — smarter golf is where it takes you.
Free while we're in beta — we'd love your feedback.