A novel system and method for controlling and stabilizing the swing mechanics of a golfer is disclosed. More specifically, a system for and method of stabilizing the right knee (the left knee for left handed golfers) of a golfer such that a critical knee flexion angle is maintained throughout the golf swing, the weight of the golfer is properly transferred, and the right hand side (left hand side for left handed golfers) is properly loaded for a reliable, consistent, controlled, and safe golf swing. The system and method further comprise use of a putting attachment that can be removably secured to a primary apparatus for controlling a golfer's stance through all phases of a putting stroke.