Mavin, FIU had Florida Gulf Coast first home loss, 69-63
The Panthers (6-4) were trailing 41-37 when Marvin drove for a layup at the 12:38 mark. Dominique Williams had consecutive baskets for the lead and when Marco Porcher Jimenez hit a 3-pointer at 8:35 it was 49-41.
The Eagles (8-2), who suffered their first home loss, got back within three but Mavin answered quickly with a layup and Porcher Jimenez hit another 3 and FGU couldn't make the stops for a final run.
Porcher Jimenez had four 3s and 14 points.