Qualification: U.S. Amateur runner-up.
A third-generation University of Oklahoma athlete, Dalke is the youngest player in the field.
Age: 19 Hometown: Santiago, Chile
Qualification: Latin American Amateur champion
With no current plans to turn pro, Gana is a freshman at Lynn (Fla.) University.
Age: 22. Hometown: Corhampton, England
Qualification: British Amateur champion
Only member of the field from Crookhorn College of Technology.
Age: 25 Hometown: Newport Beach, Cal.
Qualification: U.S. Mid-Amateur champion
The former USC Trojan is a financial analyst.
Age: 20. Hometown: Perth, Australia
Qualification: U.S. Amateur champion
Luck actually qualified twice, also winning the Asia-Pacific Amateur title.
Three Masters amateurs have finished second: Frank Shanahan, 1947 (5 under par); Ken Venturi, 1956 (2 over par) and Charlie Coe, 1961 (7 under par).