Agreed. Chance, who filled my permit in two weekends last year, is super super broke at home, but at a race (particularly at Topeka, his favorite arena in the world) you had best let him act like an unbroke maniac if you want him to fire. His best runs seem to come after he runs off at least once and gets a couple of smacks for being a brat in the warmup pen. When Chance was 4 & 5, I won a lot of local show horsemanship, reining, and trail classes on him simply because he's so broke but it all goes out the window when you get in the warmup pen at Topeka!

My husband and I have learned to live with the crazy warmups because we can literally put this horse wherever we need to during a run, and he adjusts to our very different riding styles while also covering up any mistakes we make. 

Out of control so they are running into people in the warm up pen or in the alley is not broke enough.  Period.  I don't care who you are I don't want my horse run over and injured by yours in the common areas behind the arena.  How broke you want them in the arena when they are on pattern is totally up to the rider/owner. But I want one that I can move their hip and shoulder over with my leg or rein and stop when I want to.  I wouldn't be happy riding one that wasn't that broke. But I have had horses that I didn't ride just to exercise. I pony or longe them to keep them in shape and only ride them at competitions just to preserve their minds and soundness longer into their career. 

The mare I filled my permit on and won a few PRCA rodeos on was so broke I put an English saddle on her one day, went to a 4H schooling show, and won the HUS class. I'd never asked her to walk/trot/canter that collected that long and especially not on the rail but she was extremely well broke and did it no problem. 

By no means am I WPRA, but I did want to add this: my grey gelding is really broke, rides collected, yields hind and forequarters, spins, side passes, neck reins....pretty much reiner broke. That being said, he is a pain in the butt in the warm up pen (no kicking, bucking or biting, but it really ticks him off if some horse rushes up his bum) so if I can warm him up alone, I will. He knows when it is go time and you need to be ready.