Abstract: A gauge for determining the distance of break, on a surface of golf green for a properly putted golf ball moving from a given point toward a golf cup. The gauge includes a base having measure indica at each end thereof and a level indicating member on one edge thereof. A sighting element is pivotally secured with the base and includes measure indica pointing means at each end thereof. By selecting a given point from the golf cup and arranging the base so that the level indicating member indicates level and arranging the sighting element to be coplanar with the surface of the golf green at the golf cup, the indica pointing means will point to measure indica denoting the distance of break of the golf ball to the left or right of the cup.