The US Open separates the men from the whiners on the PGA tour.
Anybody can shoot under par.
But at the Open 12 is the best so far...
Most Strokes Under Par, 72 Holes
12 under (272) — -Tiger Woods, Pebble Beach G.L., Pebble Beach, Calif., 2000
8 under (276) — -Ben Hogan, Riviera C.C., Los Angeles, Calif., 1948
8 under (272) — -Jack Nicklaus, Baltusrol G.C., Springfield, N.J., 1980
8 under (280) — -Hale Irvin, Medinah (Ill.) C.C. (No. 3 Course), 1990
8 under (280) — -Mike Donald, Medinah (Ill.) C.C. (No. 3 Course), 1990
8 under (272) — -Lee Janzen, Baltusrol G.C., Springfield, N.J., 1993
8 under (272) — -Jim Furyk, Olympia Fields C.C. (North Course), Olympia Fields, Ill., 2003
For those who understand no explanation is needed, ...For those who don't none will.