I am only asking this because I have a little Morgan that sure has some wheels. She is 20 years old and only does light riding as of now. She is not fat, but does need to get into better shape. (Another summer project.) I was just thinking of letting my smaller friends ride her or leasing her to a kid during for the fair. Just a once a year county show sort of thing, and nothing past that. I know I would definitely not ride her in speed as I am about the maximum that she can carry, and I would not want to force her to cary my weight while running.
She does not have arthritis and gets around really well. She by no means would be anything pro seeing as she is a bit hard to handle. If I leased her I would undoubtedly make sure the person knew what they could handle. (I am not mean, I would not strap a child to her and smack her on the butt. I am more sensible than that.)
I just have never seen any twenty year old horses barrel race before, so I just want to know what others experiences are with older horses.