Shot Pattern Lab
Your real carry and spread with every club, from your own launch monitor session.
What this answers
How wide is your shot pattern with each club, and do clubs overlap?
- Choose a launch monitor file, or paste a table copied from a spreadsheet.
- Check that each column is matched to the right number, then press Show my pattern.
- Pick a club to see its pattern from above; Carry ladder shows where clubs overlap.
Reopen it any time with ? Guide
Your launch monitor session
Bring in a session
A CSV or TSV export, or a table copied from a spreadsheet.
or drop a CSV or TSV file anywhere here
Reading a file needs JavaScript. It runs in this browser.
Download a blank templateCSV, column names only
Read in this browser, and kept only when you press Save to My Lab.
Check the columns
ShotLeft outAverage68%95%Modelif the spread is normal
Carry ± 1 SDAverageShotOverlapModel
Yours
- CarryCarryThe average carry of the shots you keep for this club. Uncheck a shot in the list to leave it out.
- —ydAverage
- Yours
- Carry spreadCarry spreadOne standard deviation of carry. If the spread is normal, about 68% of shots carry within this many yards of the average.
- —yd1 SD
- Model
- SidewaysSidewaysThe average distance left or right of the target line where the kept shots finished.
- —ydAverage
- Yours
- Sideways spreadSideways spreadOne standard deviation of sideways. If the spread is normal, about 68% of shots finish within this many yards of the average.
- —yd1 SD
- Model
Show the session as a table
| Club | Shots | Carry | Carry SD | Sideways | Sideways SD | Ball speed | Launch | Spin |
|---|
Shot counts are yours. Averages and standard deviations are Model, from the shots kept.
Show the columns it reads
| Number | Column names it matches | Units | Accepted |
|---|---|---|---|
| Club | Club, Club Type, Club Name, Clubs, Club Id | — | — |
| Carry | Carry, Carry Distance, Carry Dist, Carry Yards, Carry Yds, Carry M | Yards or meters | 10 to 400 yd |
| Sideways | Carry Side, Offline, Carry Offline, Side Carry, Sideways, Carry Deviation, Carry Lateral, Lateral, Side, Deviation, Offline Carry | Yards or meters. A plain number is right of the target when positive (you can flip it); 4 L and 3 R read as written | Up to 100 yd either side |
| Total | Total, Total Distance, Total Dist, Total Carry Roll | Yards or meters | 10 to 450 yd |
| Ball speed | Ball Speed, Ballspeed, Ball Spd, Ball Speed Mph | mph, km/h or m/s | 40 to 200 mph |
| Launch angle | Launch Angle, Vertical Launch, Vla, Launch V, Launch Vertical, Launch | Degrees | 0° to 45° |
| Spin | Spin Rate, Total Spin, Spin, Back Spin, Backspin | rpm | 500 to 12,000 rpm |
Names are matched without regard to case, spaces or a unit in brackets, so “Carry (yds)” and “carry_yds” both read as Carry. You confirm every match.
For your gear
What your pattern tells you
Gaps between your real carries
Save the session and each club’s average carry goes into My Lab as a launch monitor number, with its spread. The Gapping & Bag Builder lays those carries out club by club and shows the lofts that would fill a gap.
Spreads that overlap
When two neighboring clubs’ spreads overlap, a shot with one can carry like the other. Check the overlap again with every mishit left in, and with the ones you would rather forget left out.
No session yet
A launch monitor gives you a carry and a sideways number for every shot. Some need special balls or stickers to show spin.
Method
How it is calculated
Every shot is yours, read from your file. For each club, the carry and the sideways number are averaged, and their spread is the sample standard deviation: about 68% of carries fall within one standard deviation of the average, if the spread is normal. The ellipses come from the same numbers and the way carry and sideways move together; drawn as a normal spread, the inner one holds about 68% of shots and the outer one about 95%.
Few shots give a rough spread. With 10 shots, the true spread could be anywhere from 0.7 to 1.8 times the one you see, so the tool flags any club with fewer. Shots you leave out are left out of every number, and only when you choose.
The full method, with its sources, is on the Golf Lab methods page.