When Rory McIlroy, Rickie Fowler and Tony Finau walk to the first tee to play in a PGA Tour event, the best data-collecting system in golf, ShotLink, follows their progress and records every imaginable thing about their rounds. The players don’t have to do anything, wear anything or think about data production. An army of volunteers and a pair of 18-wheelers parked on-site gather the data and crunch it, then send each player a sophisticated package of statistics and information after each tournament.
