lol, I think the mob tried this back in the 1920s. It's one of the most obviously illegal things you can do, and would get your fund shut down in a heartbeat the minute it's exposed.
As to the rest of your post, I'll put it like this: If you invest in stocks, the odds are structurally stacked in your favor. (This wasn't always the case, but has been the case for a while, and there's no indication that it's going to change any time soon.) If you wager money on sports, the odds are always against you. Why would a hedge fund (think about this for a second) throw money away on such wagers?
I can imagine a hedge fund that takes bets and separates fools from their money, but most or all of them have anti-vice policies and would never countenance such a thing.