LOCATION AND EVENT TRACKING SYSTEM FOR GAMES OF SPORT

A location-and-event-tracking system includes radio-enabled anchors and tags on a field of play, e.g., a basketball court. Tags are attached to players and to balls or other game-play objects. The system determines the location in space of each of the tags. For tags connected to game-play objects, the system evaluates proximity to players to assess possession of the game-play object. If the game-play-object tag is not sufficiently close to a player for the player to be in possession of the object, the position of the game-play object is evaluated to determine whether the game-pay object is in a goal zone region. If so and the game-play object has been within an attempt zone, i.e., a sub-zone within the goal zone region, then the system determines whether a goal has been made by evaluating whether the game-play object passed in order through a number of sub-regions before, at, and after the goal.