Is there a viable alternative to using horses for racing?

Question

Is there a viable alternative to using horses for racing?

Answer 1

Err, maybe riding?

Or showing?

Hey, lets have a rat race!

Or a cow race (wonder if you could ride a cow in a race, lol)

Answer 2

of course.  We could also use rats!

Answer 3

turtles

Answer 4

Yup; use people. Seriously, why horse racing? What's the difference from betting on that, and betting on a basketball game or boxing match, or what. People who enjoy horse racing are usually gamblers, and aren't too picky..