Still that is only for recent games > It began use in the NBA at the start of the 2013–14 season, and it is now in use in all 30 arenas, following trials duri

Still that is only for recent games > It began use in the NBA at the start of the 2013–14 season, and it is now in use in all 30 arenas, following trials during the previous season in 15 arenas.[ Which I guess means before that they had some guy who just recorded shots on a board. Would be interesting to see how it was collected prior to this technology