NORMAN, Okla. — University of Colorado freshman golfer Justin Biwer arrived here Saturday in preparation to participate in the NCAA Midwest/Norman Regional, which runs Monday through Wednesday at the University of Oklahoma’s Jimmie Austin Golf Club. The true freshman is representing the Buffaloes as an individual in the NCAA regionals. He is the fourth-seeded individual out of 10 invited to Oklahoma and is the first Buff freshman to earn an individual berth since Rick Cramer in 1979.