The Bulldogs' No. 1 offense faced the No. 1 defense in the scrimmage at Sanford Stadium.
Coach Mark Richt said ''one of the better things'' about the session was the low number of big plays allowed by the defense.
Mason is entering his first full season as the starting quarterback. His backup, Faton Bauta, threw for 102 yards. Freshman Brice Ramsey threw for 134 yards.
Junior linebacker Jordan Jenkins had three sacks.