Abstract: A method for compensating for the slope of a golf green when putting begins with sighting a first line extending from a first point at eye level about two to twelve feet behind a golf ball, over the center of the golf ball, and toward a cup. Then a second line is projected generally downwardly at a first angle with a first plane perpendicular to the green surface and containing the first line, such that the first angle is indicative of the slope of the green surface and the projection of the second line defines a second point on the green surface. The golfer continues by sighting a third line from the second point over the center of the golf ball. In the basic method the golfer completes the process by striking the golf ball along the third line to propel the golf ball toward the cup along a path tangent with the third line. In an extended version of the method, the golfer repeats the projecting and sighting steps at least one more time for greater accuracy.