A sports bettor turned $15 into $140K from a 3-leg parlay. It’s the exception to the risky bet making sportsbooks billions Sasha Rogelberg Fortune 16 0 11.10.2025 “The notion of a parlay in general is so statistically unlikely to happen that it is one of the surest fire ways for the sportsbooks to just make the money off that,” one expert said.© Fortune visit website