For the fourth time this season George Mason won a game by four points or less. The latest was a 55-52 win over Rhode Island on Wednesday night.
The Rams had a chance to tie it at the end of the game, but Nikola Malesevic missed a three-pointer.
The win was an ugly one for the Patriots, as they shot 37.5 percent from the field and had 15 turnovers. A 41-26 rebounding advantage gave George Mason the extra chances they would need.
Xavier Munford led all scorers with 24 points in defeat for Rhode Island.
George Mason now has a 5-2 record and has shown a knack for winning close games. Four days ago, the Patriots knocked off Boston University, 48-45, in another ugly, low-scoring game.
The Patriots should face a much tougher test when they play Maryland on Sunday.