TarheelsRule:
The double eagle club has definitely been done.
We have had serious discussion what is a double eagle on this thread. My view has and always will be that there are 3 different items, a double eagle which I believe is a 2 on a par 5 hole, a hole in one on a par 3 hole (the most common) and a hole in one on a par 4 hole which is very uncommon as well.
The double eagle thread has put the 2 on par 5's and the ace on par 4's together as double eagles and I'm not sure where they fall out in the WGT stats.
Hole in 1 club is a hole in 1 off par 3, but a hole in 1 & double eagle all in one club is the hardest, is off a par #4 (could be #17th at oakmont, or the short ones at Cabo)
Ctth don't count, only stroke play