An illuminating hockey puck and hockey goal monitoring system is provided. The hockey puck comprises a standard size hockey puck with an imbedded RF receiver, electrical circuit, and a power source therein. The receiver functions in coordination with the hockey goal monitoring system, which registers when the receiver passes over its threshold to energize a light source either in the puck or along the goal itself. The monitoring system comprises a transmitter connected to an energized wire disposed within the goal posts and over the threshold of the goal, whereby the proximity of the receiver to the wire can be measured and the system registers when the puck has entered the goal.