If a road favorite of five or more is coming off a loss as an underdog and/or road loss, they continue to be a profitable bet since the 1980s. Recent years remain profitable, though admittedly not at the almost automatic rate of previous years.

The theory being that one quality team loses to another quality squad, then will take out their frustrations on an inferior team. Our scorephone clients have won with this for more than a quarter century and when we discovered it, the winnings went back as far as our database did: to 1980.