Electronic Analysis of Athletic Performance

The subject matter of this specification can be embodied in, among other things, a computer-implemented athletic performance analysis method that includes obtaining, at a computer system, first motion data reflecting motion of a sporting device during one or more drills performed by an athlete. The method also includes creating and storing action data by identifying a plurality of portions of the motion data, where each of the portions correspond to one or more actions by the athlete; comparing the action data for the athlete, with the computer system, to corresponding aggregated action data for a plurality of other athletes to determine a relative skill level for the athlete with respect to the one or more actions; and generating data for a report that reflects the relative development level of the athlete.