The website found that since the start of the 2011 season, road teams that are playing after a victory in which they allowed 28 or more points, are 20-11 when wagering on the under in the next game.
What had been a modest trend with a winning percentage of 58 percent during the first two seasons has surged into becoming one of the strongest trends in 2013, with five unders in six games.
After a 3-1 start during Weeks Two and Three, the trend has picked up additional victories in each of the past two weeks. In Week Four, the Cincinnati Bengals lost 17-6 to the Cleveland Browns after coming off a 34-28 win over the Green Bay Packers.
Last week, the Detroit Lions lost a 23-9 decision to those same Packers, one week after defeating another division rival, the Chicago Bears, by a 40-32 score.
One game fits this category in Week 6: the Monday Night matchup between the visiting Indianapolis Colts and the San Diego Chargers. The Colts are coming off a 34-28 home victory over the Seattle Seahawks and are 1.5-point road favorites with a total of 50.
During the span of this NFL trend, AFC non-divisional teams that have faced each other under these circumstances have seen five of seven games go under.