Livingston snapped a tie with six consecutive points to give the Patriots (9-9, 3-2 Atlantic 10) an 83-77 lead with a minute to go. Davell Roby responded with a 3-pointer and the Billikens (8-10, 1-4) used their pressure to get a turnover but Saint Louis missed three final 3-point attempts.
Greg Calixte added 11 points for George Mason, which shot 54 percent and made 9 of 20 from behind the arc. Livingston was averaging 26 points over his three previous games and hit that mark while dishing seven assists.
Saint Louis led 39-38 at halftime.
All of Zion's 34 dunks in a minute
Zion Williamson's 34 dunks set the stage for Duke's upcoming game against Virginia.
LAC VS GS
Hot-shooting Villanova beats Xavier for 6th straight win
Phil Booth scored 22 points, Collin Gillespie added 18 and No. 22 Villanova beat Xavier 85-75 on Friday night for its sixth straight win.