Charles K. McNeil
The odds are pretty good that you've never heard of Charles K. McNeil. Even most hardcore sports bettors are unfamiliar with the man who has had the greatest impact in the history of sports gambling. McNeil was the inventor of the point spread, which revolutionized sports betting.
Prior to McNeil's invention of the spread, sports betting was conducted by using odds, much like baseball and hockey today. But with the number of big favorites in football and basketball, odds could be 12 to 1, or greater, which drastically reduced betting interest.
Legend has it that McNeil, a former teacher, was working for a Chicago bank for low pay and decided to supplement his income by going to baseball games and wagering with other fans in the stands. He did well enough to quit his banking job and gamble full time.
After the Chicago bookmakers put limits on his bets, due to him constantly winning, McNeil opened his sportsbook in the 1940s and introduced the point spread, which gambler's immediately loved. He quit booking bets several years when the mob wanted in on his operation and resumed betting for a career