The invention relates to a system and method for real-time impact monitoring of multiple players engaged in a sporting activity where each player wears a protective helmet. The system includes a sensing and control unit removably positioned in each helmet. The sensing and control unit has a sensor to detect helmet impact data, a processor to compare the detected impact data to profiles, and a transmitter to transmit impact data. The system also includes a remote unit for receiving the impact data transmitted from the helmets.