One session at the sim. A bag you can trust all season.
Import
Drop in the CSV from your launch monitor or paste it. Columns are matched loosely, so every major export lands in the right place. No export? A big keypad takes carry, total, spin and smash in four taps.
Prune
Tap a shot to cross it out. It stays on the sheet and leaves the median alone. Anything that carried under 85% of the club's median gets flagged, and one tap clears them all.
Ladder
Every club gets one trusted carry, the gap to the next club, and a flag when a gap is under 8 or over 18 yards. That's the bag you take to the first tee.
Six clean.
Ten max.
Median,
not best.
Eight shots is the industry norm for gapping. At a 25% mishit rate, that leaves you short of clean data a third of the time.
GapDat counts keepers, not attempts. Hit until you have six clean ones and stop at ten either way. The number it reports is the median of the keepers, because best-of averages inflate the more balls you hit.
Target, cap and duff threshold are all adjustable in Settings.
See the yardages your bag can't cover.
A 26-yard gap is a shot you'll face every round with no full swing to hit. GapDat calls it out in ochre, flags gaps too tight to justify two clubs, and hands you the evidence before you spend money on a hybrid or a new wedge.
Green means measured today. Grey means carried forward from an earlier session, with the date beside it.
Your numbers, in your back pocket.
Print a two-sided 4×6 card. My Yardages on the front. What Club? and On-Course Rules on the back, with a ladder that walks every distance from the tee down to a pitch.
Download a single 4×6 or a letter sheet with two cards and crop marks.
Gap at the sim. Play from your phone.
Your free account backs up every session and keeps every device level. Log in on your phone and your computer and they hold the same numbers, a few seconds after you stop typing.
Add GapDat to your home screen and it opens full screen, like any other app. Export a backup whenever you like; restoring merges, so it can't wipe newer work.
Less than a sleeve of balls.
Try Pro free for 7 days. Keep it for $5, once.
Questions
Back Nine, TrackMan, Foresight, Uneekor, Garmin and Rapsodo exports all import. Column names are matched loosely, so most CSVs land in the right place. With no export, enter shots by hand on the keypad.
Best-of averages inflate the more balls you hit. The median of your clean shots is the number you can actually reproduce on the course.
You need numbers from a launch monitor, at a sim, a range bay or your garage. Anything that reports carry works, and total, spin and smash are optional.
GapDat runs in your phone's browser. Add it to your home screen and it opens full screen like any other app.
After 7 days, Pro is a one-time $5 purchase. If you skip it, everything in Free keeps working.
Yes, a free one: just an email and a password. It's what backs up your sessions and puts the same numbers on your phone and your computer.
In your free GapDat account, and on each device you log in on so it works without signal at the range. Every change backs up on its own, and you can export a backup file whenever you like.