How to practice putting at home so it carries over to GSPro

Last updated 2026-09-30

The short answer: practice the two things that carry over, pace and start line. Practice at the green speed you actually play. Read slope the way GSPro shows it, from the grid. And practice your lag putts on something that rolls like GSPro, because GSPro doesn't roll like the textbook.

Why putting on a sim feels different

Three things work against you at home:

The hole is on a screen. A 10-footer looks like the distance to the screen plus 10 feet. Short putts feel odd.
The mat is flat. You see the slope on screen, but your feet never feel it.
GSPro's roll has its own shape. More on that next, because it's the one you can train for.

That's why plenty of golfers give up and leave auto putt on. You don't have to.

GSPro doesn't roll like the textbook

Green speed comes from the stimpmeter. A ball rolls off it at 6 feet per second, about 4 mph, and the number of feet it rolls is the green's stimp. Standard courses run about 8 (slow) to 12 (fast), with 10 as medium (Stimpmeter).

GSPro honors that at short range. At stimp 10, a 4 mph putt rolls about 10 feet. Long putts are a different story. According to the community's measured GSPro putting chart, at stimp 10:

Ball speed	Roll in GSPro
4 mph	about 10 ft
8 mph	about 29 ft
12 mph	about 53 ft
14 mph	about 66 ft

The textbook model of a green slows the ball at a steady rate. On that model, the same 14 mph putt would roll well past 100 feet. GSPro takes the pace off long putts much faster.

What that means for you: short putts line up fine, but lag pace doesn't. For a 60-footer at stimp 10, GSPro wants about 13 mph; the textbook green needs closer to 10. Build your lag feel on a green that rolls like the textbook and you'll leave GSPro lag putts short. So practice lags against GSPro's roll: in GSPro itself, or on a green built to roll the same way.

Match the speed you play

Pick one stimp and stay there. GSPro's default is stimp 10 (GSPro change log), and you can change it in match setup. Pace you learn at 12 won't match a green running at 10.
Check event settings. Hosts set the green speed for online events. Practice at that speed the week before.
Know your mat. Every mat has its own speed. If yours runs much faster or slower than your GSPro green, the short putts you roll on it are teaching the wrong feel. If the mat's long enough, measure it the way the USGA does: roll from a stimpmeter three times in each direction and average the six.

Pace drills that carry over

Practice pace in sets, not one putt at a time. One putt tells you nothing. Ten tell you your pattern.

Ladder

Set up putts at 10, 20, 30 and 40 feet.
Hit three from each. All three have to finish within a putter length of the hole to move up a rung.
Leave one short and you hit that rung again.
Aim to finish a little past the hole. Dave Pelz's target, "a foot-and-a-half" past, is still the gold standard (Pelz's research-based tips).

Leapfrog

Put a tee 5 feet away and another at 20 feet (HackMotion's speed drills).
Roll the opening ball just past the near tee.
Every ball after that has to stop past the last one and short of the far tee.
Count how many you fit. The skill is tiny, deliberate changes in pace.

Leapfrog works best on your real mat, where the balls stay down as markers.

Where to run them

On your mat: Leapfrog and short ladders, with tees or coins as markers.
In GSPro: On Course Practice lets you click anywhere on screen or on the mini map to move (GSPro On Course Practice). Drop onto a green and run the ladder there. You need a way to putt for real: camera putting (webcam putting for GSPro), or a launch monitor with a putting mode, such as a Mevo+ (putting with a Mevo).

Start line: the gate

Put two tees just wider than a ball, about 18 inches in front of it on your target line. Roll putts through without touching either tee. Your stroke is real even when the green isn't, so start line is the skill that carries over most directly. A small miss at the start becomes a big miss at the hole.

Reading greens from the grid

GSPro hands you the ground. Press G for the green grid, D to toggle the dots that show break, and Y for a heatmap (GSPro keyboard shortcuts). If you use the aim stick, its white line shows the direction of the break, and "the longer the line the more severe the break" (Friendly Golfer's GSPro putting guide).

How to practice reading, not just looking:

Call it before you putt. Out loud: which way it breaks, how much, uphill or down.
Put the read in your aim. Set your line with GSPro's aim arrows, then putt straight down your mat's target line. The read lives in the aim. The stroke stays straight.
Check where you missed. A study found amateurs "underestimated the steepness" of slopes compared with pros (2024 study). If your misses keep finishing below the hole, play more break.
Pick your pace, then your line. A firm putt takes less break. A putt that dies at the hole takes more.
Uphill needs more pace. Downhill needs less, and it breaks more.

A 20-minute session

5 minutes: the gate from 6 feet.
5 minutes: Leapfrog.
7 minutes: the ladder, at the stimp you play.
3 minutes: 3-footers, one ball each. Every one has to drop. Finish with a little pressure.

Short sessions spread through the week beat one long one. Keep a note of your ladder and Leapfrog scores so you can see the trend.

If you use PuttBay: a practice green that rolls like GSPro

Everything above works without PuttBay. If you do use it, this is what it adds.

A 3D practice green that rolls with GSPro's public roll model, from stimp 6 to 13, so the pace you learn is the pace you play in GSPro. Slopes are close and being matched to GSPro.
A reading grid with rolling white dots. They roll downhill, faster on steeper slopes. The green never tells you the break unless you ask. You read it, like on a real green.
Games built on the drills above: Ladder, Leapfrog, and the PuttBay Test: 18 putts from short, middle and long, scored into a PuttBay Rating against a tour baseline. Take it today, take it again next month.
Local multiplayer and rounds for your group, on one mat.
Just a camera and a mat. No launch monitor and no GSPro needed. It works as a home putting trainer on its own.

It's free during the beta.

Walk the practice green Join the free beta

PuttBay is an independent product and is not affiliated with GSPro, Rapsodo, Garmin, FlightScope or Square. Product names are used only to describe compatibility.