One Putt is based on picturing the hole as a clock face and focusing on the number where a putt should enter. 6 o’clock should always face the ball or putt. You then determine the break and see the curved line and how the putt should break. From that point, you will visualize exactly on what number to focus to make the putt.
The one putt clock face putting system provides a standard way to describe the break or what number on the clock you should focus on to see the correct curved line for the ball to roll into the hole.
The clock face putting device is inserted into the hole on the green, which allows the golfer to identify the position of the ball on the slope and therefore the type of break they should expect for the putt.
Understanding the different shapes of the perfect putt path is the key to reading greens, and these shapes differ depending on the initial position of the ball relative to the slope. Putts from 6 o'clock on the slope are always straight, with only the power of the stroke needing to be adjusted. Putts from the hours between 3 and 9 however, have significantly different shapes: a 3 o'clock putt breaks almost all the way through the perfect putt path. A 5 o'clock putt, slight right to left, does most of its break at the end of the perfect putt path, and can often be considered straight depending on distance, slope angle and stimp (or green speed). If you have say, an 8 o'clock putt, then you know you have a big curve or slope left to right.