Alexander finished with eight 3-pointers, setting a new single-game Bison record for long-range shots. He had 18 of his points in the first half as he and Paul Miller combined for 29 of NDSU's 35 points - and a 15-point lead - at the break. The Coyotes scored just nine points midway through the second half, allowing the Bison a 24-point lead.
NDSU (17-7, 9-2 Summit) was hot from distance, shooting 14 of 22 for almost 64 percent. The Bison continue to hold first-place in Summit League play.
Tre Burnette scored 10 points, the only South Dakota player to finish in double figures. The Coyotes (11-14, 5-6) were 1 of 7 on 3-pointers in the first half and 2 of 11 by games end.