Well, this wasn't a race, just a weekday open arena practice, so there was a whole lot of terrible horsemanship going on (thankfully off camera). But yeah, of course anybody with half a brain cell will warm up--otherwise you're risking some serious soft tissue injuries, not to mention a rodeo of an entirely different nature! Not to say that everyone warms up the same way or "correctly," though. You'll have lots who will haul in, unload from the rig, ride around for an hour to "warm up," then leave their horses tied up for two hours until they're up, hop on, and run. Not that that does any good. I generally climb aboard about 20 minutes before I'm up, then do a lot of long trotting in a line, then trot some circles, then lope some circles in each direction, then do a few quick figure-8's if the ground is safe enough, then walk until I'm called.