Abstract: An automated objective American-football evaluation system may include an American-style football, at least one sensor carried by the football, and electronics to: (a) receive a string of sensor signals from the at least one accelerometer; (b) determine a time of an initial impact of the football with a receiver based upon the received string of sensor signals; and (c) output a catch quality, the catch quality being based upon a portion of the string of sensor signals that is based upon the determined time of the initial impact of the football with the receiver.

Abstract: An automated objective American-football evaluation system may include an American-style football, at least one sensor carried by the football, the at least one sensor comprising at least one accelerometer carried by the football and electronics. The electronics are to: (a) receive a string of sensor signals from the at least one sensor; (b) determine a characteristic of a throw of the football based upon the received string of sensor signals; (c) determine an identity of a football player associated with the throw of the football; (d) assign the determined characteristic of the throw of the football to the determined identity of the football player; and (e) output the determined characteristic of the throw, the determined identity of the football player and the assignment of the determined characteristic of the throw of the football to the determined identity the football.

Abstract: An automated objective American-football evaluation system may include an American-style football, at least one sensor carried by the football, and electronics. The electronics arranged to: (a) receive strings of sensor signals from the at least one sensor, wherein the characteristic of the throw of the football determined by the electronics; and (b) output throw quality. The throw quality is based upon a combination of at least two throw characteristic determined based upon the received string of sensor signals associated with a throw of the football. The at least two throw characteristics are selected from a group of throw characteristics consisting of: velocity; spin rate; time-of-flight; angle of attack; release angle; cone angle; nutation angle; spiral efficiency; and spiral decay.

Abstract: A football sensing system may include an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis and at least one accelerometer. The football has a bladder and a cover about the bladder. The accelerometer is carried by the football between the bladder and the cover to sense acceleration along at least a first axis. The accelerometer is sized to sense a predetermined maximum value of acceleration in the first axis. The accelerometer is positioned within the football in a first position with the first axis of the accelerometer angled with respect to the longitudinal axis of the football. The accelerometer in the first position is capable of measuring acceleration values in a direction in line with or parallel to the longitudinal axis of the football that are greater than the predetermined maximum value of acceleration in the first axis.

Abstract: An automated objective American-football evaluation system may include an American-style football, at least one sensor carried by the football, the at least one sensor comprising at least one accelerometer carried by the football and electronics. The electronics are to: (a) receive a string of sensor signals from the at least one sensor; (b) determine a characteristic of a throw of the football based upon the received string of sensor signals; (c) determine an identity of a football player associated with the throw of the football; (d) assign the determined characteristic of the throw of the football to the determined identity of the football player; and (e) output the determined characteristic of the throw, the determined identity of the football player and the assignment of the determined characteristic of the throw of the football to the determined identity the football.

Abstract: An automated objective American-football evaluation system may include an American-style football, at least one sensor carried by the football, and electronics to: (a) receive a string of sensor signals from the at least one accelerometer; (b) determine a time of an initial impact of the football with a receiver based upon the received string of sensor signals; and (c) output a catch quality, the catch quality being based upon a portion of the string of sensor signals that is based upon the determined time of the initial impact of the football with the receiver.

Abstract: An automated objective American-football evaluation system may include an American-style football, at least one sensor carried by the football, and electronics. The electronics arranged to: (a) receive strings of sensor signals from the at least one sensor, wherein the characteristic of the throw of the football determined by the electronics; and (b) output throw quality. The throw quality is based upon a combination of at least two throw characteristic determined based upon the received string of sensor signals associated with a throw of the football. The at least two throw characteristics are selected from a group of throw characteristics consisting of: velocity; spin rate; time-of-flight; angle of attack; release angle; cone angle; nutation angle; spiral efficiency; and spiral decay.

Abstract: An apparatus includes a non-transitory computer-readable medium to direct a processor to: receive first signals indicating a made basketball shot or a missed basketball shot by a first person during a first basketball shooting session, receive second signals indicating a made basketball shot or a missed basketball shot by a second person during a second basketball shooting session, track a number of made basketball shots by the first person and the second person, and output an indicator of a relationship of the number of made basketball shots by the first person to the number of made basketball shots by the second person at least after each made shot by of the second person while the second person is partaking in the second basketball shooting session producing the second signals.

Abstract: An apparatus includes a non-transitory computer-readable medium to direct a processor to: receive signals indicating a made basketball shot or a missed basketball shot of a basketball by a person during a basketball shooting session, receive signals indicating a location from which each made basketball shot is made, and determine and output a user cumulative score for the person for the basketball shooting session, the cumulative score being based upon the location of each made basketball shot.

Abstract: A football sensing system may include an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis and at least one accelerometer. The football has a bladder and a cover about the bladder. The accelerometer is carried by the football between the bladder and the cover to sense acceleration along at least a first axis. The accelerometer is sized to sense a predetermined maximum value of acceleration in the first axis. The accelerometer is positioned within the football in a first position with the first axis of the accelerometer angled with respect to the longitudinal axis of the football. The accelerometer in the first position is capable of measuring acceleration values in a direction in line with or parallel to the longitudinal axis of the football that are greater than the predetermined maximum value of acceleration in the first axis.

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 football sensing system including an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis and at least one accelerometer carried by the football to sense acceleration of the football along at least a first axis. The accelerometer is sized to sense a predetermined maximum value of acceleration in the first axis. The accelerometer is positioned within the football in a first position with the first axis of the accelerometer angled with respect to the longitudinal axis of the football. The accelerometer in the first position is capable of measuring acceleration values in a direction in line with or parallel to the longitudinal axis of the football that are greater than the predetermined maximum value of acceleration in the first axis.

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.

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; determine a target accuracy based upon the input; and display the determined target accuracy.

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 football sensing system including an American-style football extending along a longitudinal axis and having a maximum transverse dimension defining a transverse axis and at least one accelerometer carried by the football to sense acceleration of the football along at least a first axis. The accelerometer is sized to sense a predetermined maximum value of acceleration in the first axis. The accelerometer is positioned within the football in a first position with the first axis of the accelerometer angled with respect to the longitudinal axis of the football. The accelerometer in the first position is capable of measuring acceleration values in a direction in line with or parallel to the longitudinal axis of the football that are greater than the predetermined maximum value of acceleration in the first axis.

Abstract: An apparatus includes a non-transitory computer-readable medium to direct a processor to: receive signals indicating a made basketball shot or a missed basketball shot of a basketball by a person during a basketball shooting session, receive signals indicating a location from which each made basketball shot is made, and determine and output a user cumulative score for the person for the basketball shooting session, the cumulative score being based upon the location of each made basketball shot.

Abstract: An apparatus includes a non-transitory computer-readable medium to direct a processor to: receive first signals indicating a made basketball shot or a missed basketball shot by a first person during a first basketball shooting session, receive second signals indicating a made basketball shot or a missed basketball shot by a second person during a second basketball shooting session, track a number of made basketball shots by the first person and the second person, and output an indicator of a relationship of the number of made basketball shots by the first person to the number of made basketball shots by the second person at least after each made shot by of the second person while the second person is partaking in the second basketball shooting session producing the second signals.

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; determine a target accuracy based upon the input; and display the determined target accuracy.