Super Bowl Arbitrage:
An interesting phenomenon happens each Super Bowl: the money line odds for the game (i.e., no point spread consideration, all that matters is which team wins) are significantly skewed downward. Typically, there's a standard conversation between point spreads and money lines. For example, if a team is favored by -3, the money line would be in the range of -155. But for the Super Bowl, due to the fact that a disproportioned number of casual bettors want to "take a shot" at the big underdog payoff, the money line is cheaper than any other game of the year. For Super Bowl XLIV, the Colts, as 5.5-point favorites, would typically have a money line of -240. The actual money line is -210! Some pro bettors, understanding that money lines are mis-priced for the Super Bowl, will bet the favorite on the money line; and, as a hedge, the underdog on the point spread . . . creating an arbitrage! The casual fan won't want to do that, but if you want to bet like a pro, go point spread route if you like the underdog; and if you like the favorite, go with the money line.
Numbers below assume professional level shopping for best numbers.
Bet: #1 Colts on moneyline at -200: $440 to win $220Bet #2: Saints: 220 to win 200 at +5.5Saints win are expected to win 30%The above bets would be MINUS $72 in this case.Colts are expected to win SU but not ATS 20%The above bets would be PLUS $84 in this case.Colts are expected to win and cover 50%The above bets would break even in this case.So . . . $12 positive expectation.$640 in action, meaning 1.9% return.Annualized return (money only held one day) = 684% returnNote: as the line goes up or down this week, it doesn't really change the math (most likely the ML would go up or down accordingly). All things equal, I recommend playing the ML as late as possible Sunday (after the public has made their gameday bets).
ESPN.com used the info in this blog post for their Super Bowl betting article: pregame.com/.../738053.aspx