Method and device to train a baseball swing

Method and means for locating perimeter points for lines on...

Method and means for packaging cue tip chalk

Method and means for practicing free throws

Method and means for selectively positioning golf club shaft...

Method and system for athletic motion analysis and instruction

Method and system for determining club head speed

Method and system for golf instruction

Method and system for producing personal golf lesson video

Method and system for producing personal golf lesson video

Method and system for selecting a golf club

Method and system of providing information on golf courses...

Method for a multilayer golf ball with a thin thermoset outer la

Method for achieving an optimal golf stance

Method for adjusting the center of gravity of a golf club head

Method for adjusting the center of gravity of a golf club head

Method for balancing a set of golf clubs

Method for calculating a billiards shot

Method for chipping and club

Method for club fitting