Somewhat amazing that Geiberger did this back 35 years ago.
The Duvall 59 was in the final round of a tournament and he needed it to win by a stroke I believe.
There were 3 or more scores last year that could easily have been 58 or 59, just goes to show how the players are taking advantage of the older courses. The Greenbrier is an old classic course that plays to about 7,000 yards, there could easily have been several other scores under 60 on that tract last year, I think Compton only needed to par in to break it in the third round.