The teams traded 3-pointers at the end of the first half with Fleming making one and Liam O'Reilly scoring one for Gardner-Webb (10-11, 5-3) which went to intermission down 31-30.
Charleston Southern started the second half with a 7-0 run and later pushed the lead to 52-40 when Keeling hit a 3 then followed with a jumper with 13:44 left. The Bulldogs responded with a quick 7-0 spurt, but went more than four minutes without scoring as the Buccaneers went on a 12-0 run and Gardner-Webb never recovered.
The rebuilding Wildcats are set to raise the 2018 national championship banner next week -- and also lower expectations for the season to come after multiple NBA departures.
Top stories from around the world in our round up
Michigan coach John Beilein can't yell or throw a chest pass yet after his offseason heart surgery, but the coach says he is ready for the upcoming season -- and fully expects to be recovered by that time.