Drew Viney scored 17 points, Anthony Ireland had 16 and Loyola Marymount bounced back from one of its most lopsided losses of the season to beat No. 21 Saint Mary's 75-60 on Wednesday night.
Jarred Dubois added 15 points and Ashley Hamilton had 11 for the Lions (17-10, 10-4 West Coast Conference), who silenced a capacity crowd at McKeon Pavilion with a huge road win that significantly tightened the conference race.
The 10 conference wins are the most by Loyola Marymount since the 1989-90 Bo Kimble-led Lions made it to the regional finals of the NCAA tournament.
It was the first loss in 17 home games for the first-place Gaels (23-4, 12-2), who saw their lead over No. 24 Gonzaga trimmed to one game. Saint Mary's lost starting guard Stephen Holt to a right knee injury in the first half.