Place 4 tees at 3, 6, 9 and 12 paces. Putt to each distance going up the ladder and back down, trying to die each ball at its tee. Count how many finish within one pace and beat your record every session.
A three-putt pattern: the first putt finishes more than a meter short or long; the backswing doesn't scale with the length of the putt.
Frequently asked questions
What is the "The ladder" drill for?
Calibrate speed on long putts
How do you do the "The ladder" drill?
Place 4 tees at 3, 6, 9 and 12 paces. Putt to each distance going up the ladder and back down, trying to die each ball at its tee. Count how many finish within one pace and beat your record every session.
How long does the "The ladder" drill take?
About 15 minutes per session, 16 reps.
Sources
Dave Pelz — Dave Pelz's Short Game Bible
Dave Stockton (con Matthew Rudy) — Unconscious Putting