Abstract: The present invention is directed to target assembly for receiving a golf ball comprising a plurality of parallel golf ball receiving elongate channels; each channel having substantially the same width the other channels and each channel comprising a plurality of discrete golf ball receiving zones. That the channels may be adjusted and adapted to provide one or more consolidated target for players to aim for on the golf ball putting practice device. The sub-divisions of each channel and the plurality of channels form a grid structure. By assigning different scores to the different sub-divisions of each channel, one or indeed multiple targets can be formed. These targets can be then altered to prevent ‘muscle memory’ effects from assisting a player to achieve a high score.