My favorite drill for improving lag putting is the 9 point game. You’ll need 4 tees, some golf balls and your putter.
Use the 4 tees to make a box in the following formation:
-Place a tee 2 feet on either side of a hole, even with the front of the hole.
-Use your putter to place the other 2 tees directly behind the first 2.
This creates a box about 4 feet wide by 3 feet deep.
The rules of the game are simple:
Hit putts from various distances between 20 and 40 feet. Score the putts as follows:
+2 points if you make it
+1 point if you finish inside the box
-1 point if you leave it short
0 points for going long
The goal is to get to 9 points in as few putts as possible.
Vary the putt length every time to simulate on course conditions.
You can also adjust the points based on your biggest issue. For example, if you tend to miss by hitting your lag putts too far, then -1 point for each putt that goes long, and give 0 points for finishing just short.
As you improve your score in the 9 point game, you’ll see your lag putting improve on the course!