it is easy to notice that selecting who is going to win a game match is easier that selecting who is going to cover the point spread. In the same way, it is easier to select who is going to lose the match that select who is going to no cover the point spread.

In order to use these results in a consistent way, a running average al- gorithm is integrated in the formulation. The objective of the algorithm is to smooth the outlier so they compensate each other while still obtaining a continuos outlier shape in the two ends of the plot. This technique is used in the stock market for defining stocks trends

Next are the NBA season plots: