Abstract: the golf ball position marking device for marking a golf ball location comprises a ball marker comprising a top side having a first length L1 and a bottom side having a second length L2, wherein L2 is less than L1, a front side comprising a concave surface, a rear side, and a pair of parallel side walls. The top side further comprises a golf ball alignment means. The golf ball alignment means can comprise a groove bisecting the top side from the front side to the rear side, a first color applied to the top side and a stripe of a second contrasting color bisecting the top side from the front side to the rear side, or a plurality of indicia. The concave surface can abut the golf ball at the equator of the golf ball, and can have a radius of 0.84 inches.