Head coach John Markell's Buckeyes fell to 8-19-2 overall and 4-14-1 in the CCHA with a 5-2 defeat to the Falcons.
Nick Biondo (center) got Ohio State on the board in the second period. His goal cut the BGSU lead to 2-1.
Dustin Carlson allowed four goals and made 32 saves. The Falcons added an empty-net goal late in the third period.
Defenseman C.J. Severyn had two shots, two penalty minutes and blocked two BGSU shots.
Fellow freshman Brad Gorham also blocked one shot.