Sport betting markets, much like financial markets, contain mixed beliefs on whether or not they are efficient. The purpose of this thesis is to test market efficiency in the National Football League point spread market. In addition, this study explores the theoretical implications of a sports wager on a bettor’s expected profit. The relationship between the efficient market winning percentage and the break-even winning percentage is constant with any given probability of a push. Data from the 2008-2009 through the 2012-2013 NFL regular seasons show that market inefficiencies exist; and as a result, promote long-term strategies where a profit is expected.