Coppin State, which led for 34-plus minutes, had a 61-47 advantage with 11:28 to go but was outscored 19-9 in the final six minutes.
Chad Andrews-Fulton gave Coppin State its final lead at 79-78 and Marrow answered at the other end. After a CSU miss, Kalin Fisher made two free throws at 10.1 for a three-point lead and Lucian Brownlee missed a 3-pointer at the other end.
Marrow was just 6-of-18 shooting from the field but hit 11 of 13 free throws as Hampton attempted 30 at the stripe. Fisher added 10 points for Hampton (13-14, 8-4 Mid-Eastern Athletic Conference).
Lamar Morgan, averaging 12 points per game, scored a career-high 30 points with eight 3-pointers for Coppin State (5-22, 5-7). He also had nine rebounds. Andrews-Fulton and Adam Traore each added 14 points and Brownlee had 10.
Daum breaks South Dakota State's career scoring record
Mike Daum had 41 points, 10 rebounds and four assists, and set South Dakota State's career scoring record as the Jackrabbits beat UTSA 99-79 on Tuesday in the second round of the Gulf Coast Showcase.
No. 1 hoops recruit uses unicorn to make college choice
The No. 1 basketball recruit in the Class of 2019, James Wiseman, commits to Memphis, much to the delight of the crowd in attendance.
No. 1 recruit James Wiseman joining Penny Hardaway at Memphis
No. 1 recruit James Wiseman commits to coach Penny Hardaway and Memphis.