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Practice & Improvement with a Golf Simulator

How to Use Launch Monitor Data to Lower Your Scores: Gapping, Dispersion and Swing Fixes

Start with the right question A launch monitor produces a lot of numbers, and most of them won't lower your score. Three uses tend to pay off: gapping (kno

By the Fairway Foundry Editorial TeamPublished October 16, 20265 min read

Start with the right question

A launch monitor produces a lot of numbers, and most of them won't lower your score. Three uses tend to pay off: gapping (knowing how far each club actually carries), dispersion (knowing where misses go), and targeted swing changes (using a few metrics to check whether a change worked). Everything below serves one of those.

Which numbers matter

MetricWhat it tells youUse it forCaveat
Carry distanceHow far the ball flies before landingGapping, club selectionTotal distance indoors is usually modeled, so trust carry more
Ball speedEnergy delivered to the ballTracking real speed gainsGenerally measured directly, but check your device's method
Face angleWhere the face points at impactExplaining start lineMeasurement method varies between devices
Club pathDirection the head travelsExplaining curve (with face angle)Some units estimate rather than measure it
Launch and spinTrajectory and stopping powerDriver optimization, wedge controlSpin accuracy depends on device, ball and lighting
Smash factorBall speed relative to club speedSpotting strike quality trendsOnly as good as the club speed reading

Devices differ in what they measure directly versus infer, and that changes how much you can rely on each number. Check the manufacturer's official site for current specs and read independent reviews before leaning on any single metric.

Step 1: Build your gapping chart

  1. Warm up fully. Cold swings understate your numbers.
  2. Use the ball you play. Range balls and practice foam can change speed and spin readings.
  3. Hit 10 to 15 shots per club with a normal, committed swing. Skip the "best ever" swings.
  4. Remove obvious mishits. Throw out the clear duffs and thins, but keep the ordinary misses, because you'll hit those on the course too.
  5. Record the median carry, not the best shot. The median is the number you can plan around.
  6. Look for the gaps. Spacing of roughly 10 to 15 yards between clubs is a common target, but your own swing speed and set makeup decide what's realistic.

If two clubs carry nearly the same distance, or one gap is 25 yards or more, you have something to fix. Often the answer is a different loft or a different club in the bag. Simulator data can inform that, but it isn't a full fitting. See Can you get fitted for clubs using a home golf simulator? for what it can and can't do.

Retest now and then

Your numbers change with fitness, season and technique. Retest every few months, or after any major swing change.

Step 2: Read your dispersion honestly

Average distance flatters you. Your scores are shaped by the spread. For each club, look at the shot pattern, not only the mean:

Then use it. If your 7-iron lands within a 25-yard-wide oval, you shouldn't aim at a flag tucked next to a bunker. Knowing your real pattern helps you aim at the fat side of the green and take your medium-risk shots at sensible times. Treat the pattern as a snapshot from a simulator, not a guarantee of how the course will play. Wind, lies and nerves aren't in the data.

Recommended for youGolf Simulator Practice Routines and Drills: Weekly Plans by Handicap Level

Step 3: Fix one thing at a time

Numbers are good at telling you what the ball did and weaker at telling you why. A simple diagnostic:

Start line vs curve

If the ball starts left and curves further left, the face is the main problem. If it starts on target and slices away, the path-to-face relationship is the issue. Each needs a different fix, and guessing wrong can make things worse.

Pick a single target metric

  1. Choose one pattern to change (for example, a driver miss that always goes right).
  2. Note your baseline numbers over 10 or more shots.
  3. Make one change, such as a grip tweak or a different ball position.
  4. Re-test and compare medians and spread, not single shots.
  5. Keep the change only if it holds up over multiple sessions.

A coach can help here. Data without a diagnosis can send people chasing numbers that don't matter, so if you've plateaued, a lesson that uses your launch monitor data is a sound use of both.

What the data can't tell you

Turning data into a routine

Gapping and dispersion testing is a periodic check. The rest of your practice time is better spent on structured work. The weekly plans by handicap level show how to split time, and the Practice & Improvement hub covers the wider picture. If you're building a plan for the colder months, see winter and off-season training. Newer players, or parents setting up for kids, should read whether simulators suit beginners and kids first, since too much data early can get in the way of learning basic contact.

Choosing a launch monitor for this work

If you're still deciding on equipment, compare devices on what they measure directly, how they perform in your available space, and how they handle indoor use. Our review and comparison pages are the best next step. Features, accuracy claims and pricing change, so confirm current details on each manufacturer's official site before buying.

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