Setup:
1- Pick a hole on the practice green
2- Set up a tee 3 feet from the hole.
3- Place another tee at 4 feet, 5 feet, etc. until you reach 10 feet.
Drill:
1- Start at the tee 3 feet from the hole and try to make the putt.
2- If it goes in you move to the next tee back
3- If you miss you get a strike
4- If you get three strikes, you have to start over at the 3 foot tee.
5- The drill is over when you make the 10 foot putt.