Leo McNabb led a balanced offense with 17 points, Sammy Nzeyimana was 4 for 4 at the free-throw line in the fourth quarter, and the Stags (3-0) survived a 37-point performance by Wyatt Benoit to beat Golden Trojans (3-1) in Saco.
Nzeyimana finished with 16 points, Gio St. Onge had 12 and Maddik Weisberg scored 11 for Cheverus.
Trey Eldred joined Benoit in double figures for Thornton, finishing with 11 points.