Originally known as Oak Tree Golf Club, the par-71 layout routinely has been ranked among the top 100 courses in the country. As recently five years ago, the Pete Dye-designed course was selected the third hardest golf course in the United States.
* Ernie Vossler and Joe Walser Jr. ask Pete Dye to build “a championship golf course with no compromise” on 640 acres in Edmond. The widely acclaimed course opened on May 1, 1976.
* In 1977, Oak Tree became the youngest course in the country that Golf Digest ranked among its top 100 courses in the nation.
* Hosted the 1980 PGA Cup matches (United States vs. Great Britain)
* In 1983 Oak Tree was selected one of the top 50 courses in the world.
* The 1988 PGA Championship was such a huge success that Oak Tree was awarded the 1994 event, the quickest return trip for any course, but Southern Hills in Tulsa was forced to substitute after Landmark, Inc., which owned Oak Tree, filed for bankruptcy in 1990.
* In 2002, Pete Dye redesigned the first nine greens.
* In 2008, Oklahoma businessman Ed Evans purchased Oak Tree, changed the name to Oak Tree National and commits $6 million to a renovation project that turned the course back to its original design.
* In 2009, a new teaching school opened that features an indoor facility and state-of-the-art technology (TrackMan), K-Vest and Sam PuttLab). The closest comparable facility is located in Carlsbad, Calif.
* The original oak tree that the course’s logo — one of the most recognized golf logos in the country — is based on still stands on hole No. 5.
* Given a 155 slope rating, the maximum allowed, Oak Tree plays to a 79.3 USGA course rating, one of the highest in the United States.
* In 1986, No. 11 was selected as the most difficult 11th hole in the United States.
* In 1999, Oak Tree had three holes (current setup No. 7, No. 12 and No. 13) listed among the top 99 golf holes in America.
1984 — U.S. Amateur (Scott Verplank)
1988 — PGA Championship (Jeff Sluman)
2006 — Senior PGA Championship (Jay Haas)
2012 — Trans-Mississippi Amateur (Tyler Raber)