Indoor Golf Handicap Systems, Compared: Trackman, Evenplay, Golf Genius, and SimCap
If you've ever searched "indoor golf handicap," you've probably noticed there's no single answer — because there's no single system. The USGA and GHIN don't officially rate simulator rounds, so a handful of different companies have each built their own way to measure how good you actually are indoors. None of them talk to each other, and most golfers playing sim golf today have no idea which one applies to them, or why it matters.
Here's an honest look at how the main ones actually work, and where SimCap fits in.
Trackman Handicap
Trackman's handicap is modeled on the World Handicap System: it averages your best 8 score differentials from your last 20 qualifying rounds, using the same Course Rating/Slope math the USGA uses outdoors. It updates automatically once you've logged a complete round while signed into your Trackman account — no mulligans, gimmes capped at 12 feet, single-player stroke play only. You can't edit it yourself; a tournament director can choose to use it or not, but you don't get a vote.
The catch is right there in how you get one: it's tied to your Trackman account and Trackman-logged rounds. If your local facility runs a different launch monitor, or you play on a few different systems across different bays or trips, your Trackman Handicap only reflects whatever portion of your golf happened on Trackman hardware.
Evenplay Index
Evenplay takes a different approach entirely — instead of posted scores, it rates your actual swings. Launch monitor and simulator data feed an AI model that scores your ability on a 1-100 scale after as few as 10 shots, then converts that into a handicap suited to whatever platform you're using. It's free, and it's genuinely multi-brand: launch partners include Full Swing, X-Golf, aboutGolf, Dryvebox, and others, so it's built to span more than one hardware ecosystem rather than locking you into one.
It's a legitimately clever answer to "how do you rate a swing instead of a scorecard." What it isn't is built around logging rounds, tracking a season, or running a league the way golfers are used to doing with GHIN.
Golf Genius SIM Golf Handicap
Golf Genius's version isn't really sold to individual golfers at all — it's a facility tool, bundled into their tournament and league management software. A venue uses it to calculate and manage handicaps for the players at that location, across whatever simulator brand they've installed. That makes it genuinely cross-platform in theory, but access runs through the facility, not through a golfer's own account, and it's built for running competitions at one location rather than following a player across the simulators and courses they actually play.
Where SimCap fits
SimCap was built around a simpler starting point: most sim golfers don't play on just one brand of simulator, at just one facility, and they shouldn't need a different handicap for each one. The app isn't tied to any simulator manufacturer — you log a round from whatever platform you played on (GSPro, Trackman, X-Golf, Foresight, aboutGolf, and others), and your index is calculated the same way either way, off the real Course Rating and Slope for the course you played, the same values used outdoors. A 9-hole round gets correctly halved per WHS convention instead of just getting ignored or double-counted; a round on a course that isn't in the curated library still counts, defaulting to Par and Slope 113 — the standard WHS fallback for an unrated course — rather than getting thrown out.
Because different simulator platforms sometimes use different names for the same real course (a GSPro community recreation of Pebble Beach doesn't always say "Pebble Beach"), SimCap also matches courses across platforms so the same real course rates consistently no matter which simulator you played it on.
It's free to download, built for individual golfers first, and layered with the things a facility or a friend group actually wants on top of a number: leagues, seasons, tournaments in multiple formats, and group competitions — without requiring everyone at the table to be on the same hardware.
Which one should you actually use?
If your golf happens entirely on one brand's hardware at one place, that brand's own system (Trackman, Golf Genius via your facility) will work fine and requires zero extra setup. If you're the kind of player who ends up on a different simulator every time you travel, visit a different bay, or play with a different group, that's the gap SimCap is built to close — one handicap that follows you, not the machine you happened to be standing in front of.
Want the plain-language definition first? What is a simulator golf handicap?. Digging into differentials and rating/slope math? How an indoor golf handicap is actually calculated. Comparing against the official outdoor number? SimCap vs. GHIN.
Download SimCap — free, works across GSPro, Trackman, Foresight, Full Swing, E6, and more.