Each week you enter the performance data on each team, points, rush yardage, passing yardage, etc. The CPFA program checks out the competition each team has been playing, then weights its performance accordingly. It then calculates the adjusted strength of each team's rushing and passing, offense and defense. Next, it considers several other handicapping factors, such as the relative importance of the most recent game compared to previous ones, the importance of the rushing game vs the passing game, the offense vs the defense, the home team advantage, etc., and forecasts the outcome of upcoming games. If its predicted point spread differs from the actual spread by more than a given amount, the game is bettable. Otherwise, you simply lay off.
The CPFA system has been under development for more than 40 years, and in spite of new teams entering the league, etc., it hasn't had a losing season in the past 16 years, and has an average 23.9 % Return on Investment over 16 years ! An absolute bargain for only (US)$ 79.95 and comes with a 7 day Money back guarantee!