Stroke play medalist and Walker Cup captain Jom Holtgrieve was a 4-and-3 winner over Patrick Tallent. In the Round of 32, Holtgrieve will take on Gerardo Ramirez, who bested Jeff Burda, 2-and-1.

Paul Simson, who took the No. 9 seed, defeated Steve Rogers, 1-up and will face Kevin Carey, who moved past Grady Brame in convincing fashion, 5-and-4.

Defending champion Louis Lee continued his title defense with a 3-and-2 win over Martin West. He'll face Jay Blumenfield, who upset Doug Potter, 5-and-4.

Jim Knoll upset fifth-seeded Chip Lutz 1-up and will move on to gace Sam Till, Jr., a 2-and-1 victor over Emile Vaughan.

George Zahringer knocked off Dave Szewczul, 1-up and Doug Hanzel prevailed over Brady Exber in 21 holes. Randy Lewis, the 2011 U.S. Mid-Am winner, also moved into Round 2 with a 3-and-1 win over Dennis Vaughan.

Second round play begins Tuesday morning with the Round of 16 being played in the afternoon.