Lowest Score, First 36 Holes
133 — Jim Furyk (67-66), Olympia Fields C.C. (North Course), Olympia Fields, Ill., 2003
133 — Vijay Singh (70-63), Olympia Fields C.C. (North Course), Olympia Fields, Ill., 2003
134 — Jack Nicklaus (63-71), Baltusrol G.C. (Lower Course), Springfield, N.J., 1980
134 — Tze-Chung Chen (65-69), Oakland Hills C.C. (South Course), Birmingham, Mich., 1985
134 — Lee Janzen (67-67), Baltusrol G.C. (Lower Course), Springfield, N.J., 1993
134 — Tiger Woods (65-69), Pebble Beach G.L., Pebble Beach, Calif., 2000
134 — Phil Mickelson (68-66), Shinnecock Hills G.C., Southampton, N.Y., 2004
134 — Shigeki Maruyama (66-68), Shinnecock Hills G.C., Southampton, N.Y., 2004