Abstract: An apparatus for measuring a sportsman's weight distribution during a practice swing includes a detector (60) for sensing weight upon a first and second detection pad (30) constructed and arranged to receive the sportman's feet. The detector (60) generates weight signals as a function of the weight upon the pads (30). A controller (21) receives the weight signals and generates a data output set representative of the change in weight distribution upon the first and second detection pads (30) with reference to a point (42) within the practice swing. A reference detector (22) generates a reference signal corresponding to impact by the sportman (12) upon a ball (16) which corresponds to the reference point within the practice swing. Each of the detection pads (30) comprises a base (32) and at least one cantilevered member (34) mounted in spaced, cantilevered relation relative to the base and disposed to receive one of the sportsmens feet.