Abstract: A golf game practicing apparatus capable of simulating putting shots on a putting green comprises: a memory section for storing data concerning the distribution of heights of the curved surface of the green; a device for displaying the image of this curved surface on a display screen based on the stored data; ball information detecting section for detecting the velocity vector of a rolling ball struck by a player at a designated putt position toward a hole in the green depicted on the screen; and a computer for computing an imaginary trajectory of the ball rolling on the depicted green based on the detected velocity vector and the curved surface data. The ball trajectory is depicted on the display screen in accordance with the result of the computation.

Abstract: In a frame of a fiber reinforced plastic tennis racket made by molding process, thickness of the racket frame is reduced in an area starting from the throat to grip portion, and more preferably in the throat portion, to mitigate the bending stiffness of the frame at the portion thereby effectively hindering direct transmission of impact on the playing face to players' hands.