re: Name a Course that beat you down even though you were playing your best at the time.

Bethpage Black physically beat me down. You have to walk and it's up hill, down hill. The front nine isn't that bad in terms of difficulty but the back nine is where the fun begins. 10, 11 and 12 go something like 500, 450 and 500 and are all par 4s. I got to I believe 16 and was totally exhausted. Didn't play bad but it was demanding.