PRINCETON, N.J. - Judson Wallace scored 17 of his game-high 24 points in the second half as Princeton rolled to a 75-52 victory over Columbia on Friday night.
It was the Tigers' fifth-straight win to improve to 16-7 overall and 9-1 in the Ivy League. They have a 112-game lead over Brown and a two-game lead over Penn with four to play.
Columbia fell to 8-16 and 4-7 in the league.
The decisive 13-0 run gave the Tigers a 58-39 lead. Wallace sank a 3-pointer to start the run, then Scott Greenman delivered a bounce pass to Will Venable for a layup.
Venable got another layup and a free throw, and, after an offensive rebound by Harrison Schaen, Wallace hit a three from the left wing to make it 56-39.
Wallace, who has scored 20 or more points in each of the past five games, scored the first nine of the second half.
Princeton got off to a torrid start, shooting a season-high 72 percent from the field in the first half.
Greenman scored the opening basket on a drive and then hit two straight 3-pointers to push the lead to 10-2.
The Tigers' freshmen, Max Schafer and Luke Owings, then got into the act and the Tigers built a 13-point lead at 27-14.
But the Lions went on an 11-2 run to cut it to 29-25.