This was 'Chip' and I at a rodeo. I really didn't race her much because
A- My sister kind of claimed her as her horse &
B - She was our broodmare and she was an easy keeper : Definition: A horse that gains or maintains weight easily on the minimum required food is said to be an easy keeper. Many times an easy keeper will not need concentrates, or rich hay to stay in top (or even too fat) condition. Some easier keepers, especially ponies would benefit from a restricted diet to prevent obesity.
I was trying to describe myself to some skinny young moms at play group the other day and this is the best way I can think of.
Being as healthy as a horse isn't necessarily a good thing all the time!