The CrossFit Games Open 17.5
Unless 17point5 is way to fucked up/difficult/horrible to do/setup/manage this early in the morning, the coach is then able to do his WOD. Could be anything.
If you are registered for the Open? All the other hours will be 17point5.
But just show up on Sunday. Why? We will have a Bring Your Own Food and Drinks style of BBQ. Everything and everybody is welcome.