The two-day event will be Nov. 5-6 at Churchill Downs in Louisville, Ky.
"Based on the commitments received by our racing department, if the fields hold together as projected, we're looking at perhaps the deepest, most talented group of horses in the history of the event," Greg Avioli, Breeders' Cup president and chief executive officer said Tuesday. "With Arc de Triomphe and English Derby champion Workforce, French champion Goldikova and Japanese champion Espoir City joining our reigning U.S. champion Zenyatta, we have an unprecedented number of the greatest horses in the world competing in this year's championships."
Zenyatta, owned by Jerry and Ann Moss and trained by John Shirreffs, will run in the $5 million 1 1/4-mile Breeders' Cup Classic. She is the only female to ever have won the race, and with $6.4 million in winnings the 6-year-old is the richest North American female racehorse in history. Mike Smith will be aboard her in the Classic.