Abstract: A player training apparatus for use with a portable performance system. The portable performance system includes a processor, a memory and a display. The training apparatus includes an American-style football, at least one sensor coupled to the football, at least one transmitter coupled to the football and operably coupled to the sensor, and a non-transient computer-readable medium containing code. The code directs the processor to: retrieve a football instructional package from the memory regarding an act with the football; display the football instructional package on the display; instruct the player to perform the act with the football; receive input pertaining to motion of the football; store information related to the input into the memory; and display information relating to the input.

Abstract: A apparatus for use with a portable performance system. The portable performance system includes a processor, a memory and a display. The training apparatus includes an American-style football, at least one sensor coupled to the football, at least one transmitter coupled to the football and operably coupled to the sensor, and a non-transient computer-readable medium containing code. The code directs the processor to: determine at least one football event by comparing the at least one attribute of the football to one or more predetermined signature characteristics of different football events; and an output device to present output to a person based on the determination of the at least one football event.

Abstract: A player training apparatus for use with a portable performance system. The portable performance system includes a processor, a memory and a display. The training apparatus includes an American-style football, at least one sensor coupled to the football, at least one transmitter coupled to the football and operably coupled to the sensor, and a non-transient computer-readable medium containing code. The code directs the processor to: receive input pertaining to motion of the football resulting from the player performing an act with the football; store information related to the input into the memory; compare the received input with previously stored celebrity information regarding similar football acts performed by a celebrity; and display information relating to the input and the comparison to the celebrity information.

Abstract: A player training apparatus for use with a portable performance system. The portable performance system includes a processor, a memory and a display. The training apparatus includes an American-style football, at least one sensor coupled to the football, at least one transmitter coupled to the football and operably coupled to the sensor, and a non-transient computer-readable medium containing code. The code directs the processor to: receive input pertaining to motion of the football; derive at least one football motion parameter from the input pertaining to the motion of the football; and display information relating to the input. The at least one football motion parameter includes spiral efficiency.