Brandon Conley scored 16 and the Golden Eagles (15-13, 9-6 Southland Conference) out-rebounded Lamar 37-32, including 13-8 offensive boards.
Lamar led 12-3 to start the game, then led 18-8 on a trey by Anthony Holliday, but Oral Roberts ripped runs of 10-2 and 8-2, and Glover's dunk and trey put the Golden Eagles up 34-30 at halftime.
Oral Roberts opened the second half with a 9-2 run and led by 14, but the Cardinals (3-24, 2-13) cut the lead to eight on an 8-2 run capped by a layup by Holliday. Free throws by Glover ended a 10-2 run and the Golden Eagles led 64-49 at 7:07, then kept the Cardinals at arm's length.
Holliday led Lamar with 18, Donovan Ross and Nimrod Hilliard scored 13 apiece, and Amos Wilson had 10.