[1] The 2011 NFL collective bargaining agreement saw players agree to having their on-field location and health metrics tracked.
[5] An example of raw data collected by NGS includes a wide receiver's real-time speed, acceleration, and route paths are tracked by Next Gen.[5] Zebra described 2014 as a "best effort" year, with that season seeing the introduction of location beacons embedded in each player's shoulder pads, as well as referees and first down measuring sticks also being equipped with radio-frequency identification (RFID) tags.
[6] At the time, there was a half-second latency and a margin of error of less than six inches; the ball was noted by The Verge as the only "untracked entity on the field".
[1] In 2015, Microsoft included "Next Gen Replay" as a feature on its NFL mobile app for the Xbox One and Windows 10 devices.
[11] Machine learning tools are used as part of AWS' role in NGS data collection, helping generate new metrics, such as the 2024 introductions of the "Tackle Probability" and "Offensive Shift and Motion Classification" stats.