I run at 2 different arenas, both outdoor. One has a larger pattern, another has a smaller one, but it's still larger then what I've seen on TV for a "small NBHA pattern"
My best time at the larger arena was a 20.2, I think the arena record was a low 19. At the other place, my best time was a 17.8? I believe, and the arena record is a 17.6, I was SOOOO close. And that was on my 13.3 pony. You should have seen the looks that I got. LoL. The fast horses run in the 19's there. All depends on what the arena is like that day. (Slower if muddy, faster if really dry)