Club One of the main differences between the putting strokes of many professionals and amateurs is in the length of their strokes.
Many amateurs tend to make a long backswing and finishing with a short follow through.
As seen outlined with the golf balls in Picture 1 and Picture 2. This motion usually causes the deceleration of the putterhead travelling through the ball and can cause the putterface to become closed or open at impact. As a result, inconsistency in the roll of the ball you putt and the inability to control the distance and direction of your putts. As seen outlined with the golf balls in Picture 3 and Picture 4. Practise with the balls as a guide by taking the putter no further past the ball on the right and accelerating the putter head through to the forward ball.