Moore finished with 21 points and 11 assists, joining Cameron Wells and Marshall Harris III as the only players in program history to record a double-double with points and assists.
Moore had nine points and one assist over the final 4:03 to account for the final 11 points scored by the Bulldogs (11-17, 6-11 Southern). Meanwhile, Jalen Riley accounted for ETSU's final 10 points, going back-and-forth with Moore to cause seven lead changes during that span.
Riley put the Buccaneers (16-12, 8-9) ahead twice with 3-pointers in the final two minutes and hit a jumper with 11 seconds left to put ETSU up 73-72.
Jake Wright added 15 points for The Citadel, which made all 18 of its free throws.