How Golf Simulators Work, and Whether You Can Trust the Numbers
Every serious golfer eventually asks the same question about indoor golf: is any of this real? It is a fair thing to ask. A screen, a mat, and a set of numbers feel a long way from a fairway in the Treasure Valley. Here is what actually happens between impact and the display, and what accuracy should mean to you.
What a Simulator Is Really Doing
A golf simulator is three things working together: a launch monitor, software, and a hitting space.
The launch monitor is the instrument. It measures what the club and ball do at and just after impact. The software takes those measurements and calculates the flight the ball would have taken outdoors, including carry, curve, landing angle, and roll. The screen, projector, and hitting area simply present that result in a way you can see and react to.
The key point is that the screen is not measuring anything. The quality of a simulator comes down almost entirely to the quality of the launch monitor behind it.
How Launch Monitors Measure a Shot
There are two broad approaches. Camera-based systems photograph the ball and club at impact. Radar-based systems track the club and ball through the air using radio waves, much like the technology used to follow aircraft or measure speed on a roadway.
Radar-based units, such as the Trackman systems we use, follow the ball throughout its early flight rather than inferring everything from a single moment. That matters because spin, launch angle, and speed all interact. A system that observes the flight directly has less to guess at.
The core data points are:
Club data: club speed, path, face angle, and angle of attack
Ball data: ball speed, launch angle, launch direction, and spin
Flight data: carry distance, total distance, apex height, and landing angle
Those numbers, fed into a physics model, produce the shot you see on screen.
So, Are Golf Simulators Accurate?
It depends on the equipment, and the honest answer is more nuanced than "yes" or "no."
Measured data is the strong suit. Ball speed, launch conditions, and spin from a quality radar unit are consistent and repeatable. For practice, repeatability is what matters most. If your 7-iron carries the same number on Tuesday and Thursday, your swing is telling you something real.
Simulated outcomes are modelled. Once the ball leaves the measured portion of its flight, the software calculates the rest. Conditions like wind, humidity, and elevation are set by the software, so a simulated 150-yard carry is an informed calculation rather than a field measurement. For most golfers that is more than precise enough to guide decisions.
Putting and short game are different. Full swings are where simulators excel. Around the green, nothing replaces real turf and real roll, which is why we built a 3,000 square foot putting green alongside our simulator bays.
What Accuracy Means for Your Game
Most golfers do not need laboratory precision. They need honest feedback they can act on. Good simulator data does three useful things:
Reveals your true distances. Carry numbers, rather than the best shot you have ever hit, tell you what club to pull on the course.
Shows your tendencies. Face angle and path explain your miss in a way that feel alone often cannot.
Lets you measure progress. Because the data repeats, a change in your numbers over weeks is a change in your game.
The best way to use any simulator is to treat the numbers as a consistent reference point, and to compare yourself against yourself.
Why Setup Matters
Even excellent equipment needs the right environment. A properly calibrated unit, adequate ceiling height, a quality hitting surface, and a clean line of sight all affect the experience. This is part of why we prioritize quality over volume at The Fairway Lounge: four Trackman 360 bays, maintained properly, in a space designed for focused practice rather than crowds.
Judge It for Yourself
The simplest test is to hit a few shots. Compare the carry numbers to what you know about your own game, then watch how consistent the data is from swing to swing. That consistency is the real measure of a simulator you can trust.
Ready to try it? Reserve a Trackman bay, or explore membership options for 24/7 access to the simulators, putting green, and members-only lounge.
The Fairway Lounge, 3750 E Pewter Falls St Ste 120, Meridian, ID 83642 | (208) 999-8486