First Triple Crown winner in 37 years!

[Anomalocaris]

I'm sure the humans get rich off of this.  Not so sure what the horse gets out of it.

Aside from being treated like royalty for the rest of his life and mating with every thoroughbred filly in sight, there's always the possibility that he is intelligent enough an animal to understand at some level, and take pleasure in, the competition itself. 

Perhaps he is intelligent enough to despise the competition staged for human benefit, like and would rather be free to chase those fillies that have a good chance surviving in nature rather than having been optimized for human preference.