Nine of the 11 largest betting pools have shown declines from all customers except computer-assisted wagering groups over the past four years, while the handle of the largest CAW groups grew dramatically, according to an extensive study of data released Monday by the Thoroughbred Idea Foundation (TIF). "The Thoroughbred Idea Foundation's analysis of data from Del Mar between 2018 and 2022 showed on an inflation-adjusted basis, per-race (or per-opportunity basis for certain bet types) CAW betting, from what is believed to be 17 accounts, has grown tremendously in the last...