Abstract: A putter handle grip end mounted holder designed to accept a wide range of commercial plastic golf ball position markers having dimensional differences, and adaptable to putter handle grips with different end contours and circumferential shapes. The holder is formed by a three-ply rubber and nylon laminate in a flat triangular configuration. The three corners have round, through holes which receive flat head screws. The screws both attach the holder to the putter grip end and provide a three point support to the underside of the circular ball marker top. A central round hole in the holder receives the elongated stem of a circular ball marker top. The ball marker stem is releasably held by the gripping action of the three-ply rubber and nylon construction.