JaShaun Smith hit a 3 to reduce Longwood's deficit to 25-15 with 6:49 before halftime, but Cortez Mitchell made a layup and Fleming buried another 3 for a 15-point lead. Fleming's last 3 of the half put the Buccaneers up 42-23 at the break.
Charleston Southern extended its lead to 61-30 with a 19-7 run after intermission with Keeling scoring eight and Cortez Mitchell adding seven. Mitchell finished with 13 points and McConico scored 10.
Smith led Longwood (3-11) with 15 points.
Mike Krzyzewski switched to zone last season to mask his young team's defensive frailties. Will we see that again in 2018-19?
The cream of the crop of American high school basketball will congregate in Colorado Springs from Oct. 5-7, as USA Basketball unveils its newly expanded Junior National Team minicamp in collaboration with the NBA, NCAA and NBPA.
Missouri guard Cullen VanLeer is retiring from basketball after tearing his ACL in the Tigers' final regular-season game last season.