Zenyatta, 19-0, against a gallant run by Switch.
She runs again in the Breeder's Cup Classic on Nov. 6th at Churchill Downs, in what may be her last race. Come home safe, lady.
*Dude, I just learned that she's a hand taller than Secretariat was, and he was a good-sized horse (16.2). No wonder she dwarfs everything else on the track.)