The Gamecocks (12-5, 3-1 Ohio Valley Conference) outscored the Bruins 24-3 over an 8 1/2-minute stretch that ended at 52-35 on Cam Martin's 3-point play with 8:52 left.
Belmont (11-6, 3-1) closed the gap to 58-54 on Austin Luke's free throw with 1:56 to go, but Tyrik Edwards scored a pair of baskets and Marlon Hunter added a layup to help Jacksonville State hold on and snap the Bruins' six-game winning streak.
Jacksonville State stayed mostly inside on offense and made 50 percent of its shots while Belmont took 34 of its 59 attempts from the arc and made only seven 3-pointers.
Washington holds off late Seattle rally for 70-62 victory
Jaylen Nowell scored 12 of his 18 points in the first half, Noah Dickerson added 13 and Washington nearly blew a 20-point lead before holding off crosstown rival Seattle 70-62 on Sunday night.
Frey, Hall help Montana St. beat Washington St. 95-90
Harald Frey had 31 points and 10 assists to lead Montana State to a 95-90 win over Washington State on Sunday at the Toyota Center.
Highlights: Columbia 74, Iona 71 - Via Ivy League
Highlights from Columbia's 74-71 win over Iona at Madison Square Garden