Abstract: A system for monitoring the position of ball during a game. The game ball monitoring system includes a plurality of boundary sensors that are placed along the boundary lines of a sports field. The boundary sensors form the boundary lines of the sports field, wherein a representation of the boundary line is relayed to and presented on a display screen. The game ball monitoring system further includes a ball having a GPS chip and transceiver securable thereto in order to transmit the position of the ball to the display. The display allows a user to view the boundary line of the playing field via information received from the sensors and the ball relative to the boundary line. A logic within the display determines if the ball is within or outside of the bounds of the boundary line in order to allow for accurate out-of-bounds calls to be made.