Kasparov to Place or Show

Google searches can turn up some strange things. It appears that the horse "Kasparov" is still in the running, at least from this race report. (Scroll down to the 4:31pm race, horse #8.)

A few years ago there was a Karpov and and a Kasparov on the circuit. There have been quite a few racehorses named for chess players or with other chess-themed names. Anyone recall where such a list appeared? It's in this pile of books behind me somewhere...