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

I think both courses you mentioned that I’ve played (Walden and Riverplace) are near impossible if you’re playing them for the first time without a good golfer. You have to hit so many tee shots to precise yardages which are blind. Difference is with Walden you’re generally in the trees (sometimes houses) if you miss and Riverplace you’re off a cliff if you miss.