Hotter 'N Hell Hundred

Right now my brother Mike and my parents should be sleeping, preparing to get up early tomorrow morning to ride in the Hotter 'N Hell. That's 100 miles or 100k in 100 degree weather. Sounds grand, no? Pray that they get good rest, that it's not too hot (relatively speaking!), and that they are all safe. Mike is riding with a group; my parents are riding with the tandem bikers! Buena suerte!