Abstract: A sports electronic training system, and applications thereof, are disclosed. In an embodiment, a portable performance monitoring system for monitoring an individual's performance during a physical activity includes a motion monitor adapted to be physically coupled to the individual during the activity and a portable electronic processing device adapted to be physically coupled to the individual during the activity. The portable electronic processing device includes a wireless personal-area network transceiver adapted for wireless communication with the motion monitor, a memory adapted to store workout program data, a processor adapted to determine performance information for the individual, and an output adapted to provide feedback to the individual based on the performance information and the workout program data.