Rosenbauer ran for 128 yards on 19 carries, with his big run on Brown's first offensive play. Bewely Wales fumbled on Columbia's first offensive play and Ludovic Richardson recovered it in the end zone for a 14-0 lead.
Sam Russel blocked a punt, then recovered it the end zone and Brown led 21-14 at halftime.
Skyler Mornhinweg was 25-of-35 for 204 yards with and interception for Columbia (2-8, 1-6). He threw a 5-yard TD pass to Cameron Molina and a 35-yarder to Scooter Hollis. Molina gained 174 yards on 40 carries and scored on a 1-yard run.