A golf game employing r.f-tag coded golf balls has a playing area with r.f. antennae located underneath to enable the number of strokes taken by a player to be counted. Separate antennae are provided for the tee area and hole, respectively, and the antennae around the hole are smaller to improve resolution. The antennae are connected to a computer which monitors successive moving and stationary phases of a golf ball to count the number of strokes taken by a player.