Hagins made three 3-pointers and Dillard was perfect in 11 trips to the free throw line.
UALR held a 25-15 lead at halftime, but Troy's Wesley Person Jr. scored the first six points of the second half.
Troy got within three points midway through the second half until UALR went on a 12-1 run for a 49-35 lead. Dillard made six free throws in the final minute to seal it.
Chris Bilbo led Troy (10-16, 5-12) with 15 points. Person added 14.
UALR beat Troy 73-65 on Jan. 22.