14 under 58 for me at St Andrews 18 hole single play.
I started out really slow, struggling to get my approach shots close on the first 4 holes and I was sitting at only 1 under through 4, but with an eagle on 5 I finally got my stroke back and went on a birdie tear the rest of the way.
A 58 also earned me a promotion to Legend, so looks like I am moving back to the tips.
GLTA