You can't play Major League Baseball and bet on a game; just ask Pete Rose. Don't try running a betting ring in the NHL, either. Want the surest ticket out of NCAA sports? Betting's the way to do it. In stark contrast, however, the United States Golf Association officially sanctions betting among players during their games. And it's not just the pros who bet. Every man, out with his buddies, asks at the first tee, "Shall we make this interesting?"...