This article SportsDataIO's procedure on covering NBA referees.
This endpoint provides a list of all NBA referees and some details about them, including name, experience and college. In the existing endpoints, Games by Date & Schedules, the four referees assigned to officiate the game, will be included with the following field names: CrewChiefID, UmpireID, RefereeID, AlternateID.
The league announces referees at approximately 9:00 am EST each morning and the data operations team will enter them as soon as possible after they are announced. A Crew Chief, Referee, and Umpire will be assigned for each game. In some instances, an Alternate referee will also be assigned. The team will monitor the status of each game's Referee Assignments in case of any unforeseen circumstances that prevent a referee from officiating in the game.
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