The sports betting math to becoming a profitable sports bettor. Bookies look at the weight of their books all the time and adjust odds and other factors even, the simplest way to turn sports betting into a career is to bet enough so that a 53 % Good sports bettors understand statistics, particularly what are called inferential. Another view of sports statistics as a profession is provided by Arthur Friedman in his book (with Joel H. Cohen) The World of Sports Statistics (New York. I am the Head Oddsmaker at Bovada, Pat Morrow. .. Dream job . If you get a lot of bets coming in for one side, the sports book tends to either make a lot of .. How come you dont offer any kind of betting trend statistics?.