Paul Cowley,
My guess is that they play all three nines and perform an interpolation.
However, you can't play the combination 1st and 2nd hole on one nine during regular play, so, how do they evaluate that hole, and, I would doubt that guests are permited to play when special events are held at the club.
It's also doubtful that they could play the 2nd hole on one nine as a par 3 instead of in its normal form, a par 4.
But, the core of my question is:
How does TCC's score in category # 1, "ease and intimacy of routing" not take a real hit vis a vis the composite golf course ?
And, absent a composite golf course, wouldn't that component of the rating criteria generate a higher score ?
Leaving raters to consider the inclusion of holes # 9, 10 and 12, versus the inserted and altered holes.
I also wonder, if one gerrymandered Ridgewood to cull out the weak holes on a wonderful golf course and insert some stronger holes from one of the nines, would Ridgewood's ranking increase ?
Ridgewood's problem is that there aren't many, if any, weak holes on the West and Center nines, and as such, that's why it deserves a high ranking.