Sean:
Interesting thread but I'm not too sure what the distinctions are, even in your mind, between challenge and difficutly on any particular golf course.
You mentioned Tiger Woods and his performance at Hoylake.
I don't know enough about Hoylake to wax on about what distinctions there may be on that course (particularly during the British Open) between challenge and difficulty but I did watch every round of Tiger's victory there and I think it was pretty obvious what he was doing and doing differently than just about all the rest of his competitors.
It looked to me like he simply stuck to a "whole tournament" game plan or course management plan of simply not accepting any risk off the tee by going with an iron everywhere, and no one else in the field did that or even thought of it for some reason.
Why did he do that off the tee?
Obviously, he wanted to hit a ton of fairways and keep his tee shots out of dangerous rough or whatever or bunkers farther down the fairway (you may know Hoylake so you tell me why you think he hit only irons on all the par 4s and par 5s).
Woods obviously felt comfortable enough in the quality of his mid irons to match them against shorter irons into greens by the rest of the competitors who hit fairways off the tees with drivers etc, not to mention that the missed fairways of the rest of the competitors using drivers would even out the rest of the holes with him, or cast them into his overall favor.
Could any of the rest of the British Open competitors have competed with him better if they used his "whole tournament" game plan of just irons off the tees?
That's a good question and we'll never know because no one else even thought of it, other than Tiger.
And that fact alone may be most of the reason his victory at Hoylake was so remarkable.
But I'm not too sure what that says about the distinction between "challenge" and "difficulty" at Hoylake, or any other golf course, other than the fact that apparently at Hoylake Woods felt he couldn't bomb his driver with impunity as he seems to feel on other golf courses.
But why that was different at Hoylake, I can't say.
Maybe we need a close analysis of Hoylake in the British Open compared to other courses to see what it is about Hoylakes challenges and difficulty that's distinct or different from other golf courses.