Unbeaten racemare Zenyatta beats the boys at the $5 million Breeders' Cup Classic

Zenyatta and jockey Mike Smith after their victory in the Breeders' Cup Classic

Zenyatta and jockey Mike Smith in the Breeders' Cup Classic at Santa Anita

Jockey Mike Smith celebrates after winning the five million-dollar Breeders' Cup Classic race on the horse Zenyatta, owned by Jerome S. Moss, during the Breeders Cup races...

ARCADIA, CA - NOVEMEBR 7: Jockey Mike Smith celebrates winning the Breeders' Cup Classic race on Zenyatta during the Breeders' Cup World Championships at Santa Anita Park November 7...

ARCADIA, CA - OCTOBER 24: Jockey Mike Smith rides Zenyatta en route to winning the Breeders' Cup Ladies Classic during the Breeders' Cup World Championships at Santa Anita Park October 24, 2008 in...

Exercise rider Steve Willard takes Zenyatta for a run during a workout for the Breeders' Cup races at Santa Anita Park in Arcadia, Calif., Thursday, Nov. 5, 2009

Exercise rider Steve Willard takes Zenyatta for a run during a workout for the Breeders' Cup races at Santa Anita Park in Arcadia, Calif., Thursday, Nov. 5, 2009

Zensational is the early favorite for Saturday's Breeders' Cup Sprint

Victor Espinoza will ride Zensational in the Breeders' Cup Sprint on Saturday

Garrett Gomez could make the biggest impact of any jockey at this year's Breeders' Cup

Santa Anita hosts the Breeders' Cup for the second straight year

Mambo Meister earned a berth in the Breeders' Cup Dirt Mile

California Flag is headed to Santa Anita for the Breeders' Cup

George Washington's comeback ended in catastrophe at the 2007 Breeders' Cup