Nelson, who also had five steals, sank a 3-pointer with 3 seconds left in regulation to send the game to OT.
Warren Williams finished with 16 points for the Jaspers (6-1), who notched their fourth straight win.
Evansville visits Missouri State following Mosley's 25-point game
Evansville Purple Aces (5-14, 1-7 MVC) at Missouri State Bears (15-7, 6-3 MVC)
Allen leads New Mexico State against Grand Canyon after 26-point game
Grand Canyon Antelopes (15-4, 5-2 WAC) at New Mexico State Aggies (17-3, 6-1 WAC)
Wake Forest visits Syracuse following Williams' 20-point showing
Wake Forest Demon Deacons (17-4, 7-3 ACC) at Syracuse Orange (9-11, 3-6 ACC)