Systems and methods provide feedback to at least one participantin a field of play. A performance analysis device determines performanceinformation of each participant in the field of play, where theperformance information is based upon at least one of determined location,speed, path, acceleration and biometrics of said each participant. At leastone output device provides real-time feedback to the at least oneparticipant based upon the performance information. The real-time feedbackcomprises performance information of the at least one participant and/orperformance information of one or more other participants in the field ofplay.
