Southern Miss picked up its second consecutive win, 57-54, at South Alabama Monday night.
Iowa State transfer Kourtlin Jackson led the Golden Eagles with a game-high 25 points. He tied the game at 54-54 on a pair of free throws with 1:24 remaining.
Eddie Davis provided the game-winning basket when he hit a jumper with 51 seconds left. He also converted on 1-of-2 free throws with 11 seconds left to help close the deal.
Davis was the only other USM player in double digits with 11 points.
Southern Miss (2-6) next hosts Georgia State at 4 p.m. on Saturday.
Barrington Stevens led USA (3-6) with 20 points and Ken Williams returned from injury to contribute 14 points.
South Alabama led the game 33-27 at halftime after hitting 9-of-16 3-pointers in the first 20 minutes.