- Zenyatta (Wikipedia.org)
"Zenyatta (foaled April 1, 2004 in Kentucky) is an American champion Thoroughbred racehorse, defeated once in a career of 20 races." 11-10
- Zenyatta: Best Racehorse Ever? (CBS News)
"If Zenyatta wins the Breeder's Cup Classic to cap an undefeated career of 20 straight victories, some say the 6-yr.-old mare might just be the greatest thoroughbred racehorse in history."
Editor's Note: Zenyatta lost by a head. 11-10