Hightail (inside) upset 1-2 favorite Merit Man in the Breeders' Cup Juvenile Sprint.

Photo: Anne M. Eberhardt

It was the first career win for Hightail who was ridden by Rajiv Maragh and is trained by D. Wayne Lukas.

Photo: Skip Dickstein

Hightail paid $32.80, $7.20, and $3.40. Merit Man, second, returned $2.40 and $2.10, and Sweet Shirley Mae was worth $2.40 to show.

Photo: Anne M. Eberhardt

Hightail was bred in Kentucky by Green Hills Farm and is out of the Storm Cat mare Stormy Renee.

Photo: Skip Dickstein

Calidoscopio wins the 2012 Breeders' Cup Marathon.

Photo: Skip Dickstein

Calidoscopio was ridden by Aaron Gryder and is trained by Guillermo Frankel.

Photo: DAVE HARMON

Calidoscopio paid $36.40, $16.00, and $9.60. Sense of Purpose, second, returned $12.40 and $7.60, and Atigun was worth $3.40 to show.

Photo: CHAD HARMON

The 9-year-old gelding Calidoscopio became the oldest horse ever to win a Breeders' Cup race.

Photo: Anne M. Eberhardt

Flotilla sails home to win the 2012 Breeders' Cup Juvenile Fillies Turf.

Photo: Anne M. Eberhardt

Flotilla was ridden by Christophe Lemaire and is trained by Mikel Delzangles.

Photo: RICK SAMUELS

Flotilla paid $24.80, $10.80, and $7.80. Watsdachances, second, returned $6.40 and $5.40, and Summer of Fun was worth $19.40 to show.

Photo: Skip Dickstein

Flotilla was bred in France by Eric Puerari, Oceanic Bloodstock and Ariane Gravereaux, Flotilla is out of the Sinndar mare Louvain.

Photo: Anne M. Eberhardt

Beholder wired the field in the Grey Goose Breeders’ Cup Juvenile Fillies.

Photo: SKIP DICKSTEIN

Beholder was ridden by Garrett Gomez and is trained by Richard Mandella.

Photo: DAVE HARMON

Beholder paid $9.80, $4.60, and $3.00. Executiveprivilege, second, returned $3.40 and $2.40, and Dreaming of Julia was worth $3.20 to show.

Photo: Anne M. Eberhardt

Beholder was bred in Kentucky by Clarkland Farm. Beholder is out of the stakes winner Leslie's Lady, a daughter of Tricky Creek, and is her dam's second grade I stakes winner.

Photo: Anne M. Eberhardt

Zagora held off a Marketing Mix to win the 2012 Breeders' Cup Filly & Mare Turf.

Photo: Skip Dickstein

The final time for the distance of 1 1/4 miles on firm grass was 1:59.70.

Photo: RICK SAMUELS

Zagora paid $20.40, $7.80, and $5.80. Marketing Mix, second, returned $6.00 and $3.80, and The Fugue was worth $2.80 to show.

Photo: Anne M. Eberhardt

Zagora was ridden by Javier Castellano and is trained by Chad Brown. Zagora was bred in France by Eric Puerari and Oceanic Bloodstock.

Photo: Skip Dickstein

Royal Delta won the Breeders' Cup Ladies' Classic for the second year in a row.

Photo: Skip Dickstein

Royal Delta was ridden by Mike Smith and is trained by Bill Mott.

Photo: CHAD HARMON

Royal Delta paid $5.40, $3.60, and $2.60. My Miss Aurelia, who rallied for second, returned $5.80 and $4.00, and Include Me Out was worth $5.20 to show.

Photo: DAVE HARMON

The 4-year-old Empire Maker filly was bred in Kentucky by Palides Investments and is the champion 3-year-old filly of 2011.

Photo: Skip Dickstein

Royal Delta now has earned $3,703,851 in 15 starts. She has nine wins, three seconds, and a third.

Photo: Anne M. Eberhardt

Royal Delta covered the 1 1/8 miles in 1:48.80 on a fast track.

Photo: RICK SAMUELS

Royal Delta connections celebrate the victory.

Photo: Skip Dickstein

It was great first day of racing for the 2012 Breeders' Cup World Championships at Santa Anita. More photos from these races are available at The Blood-Horse Photo Store (http://www.BloodHorse.com/Photos).

Photo: RICK SAMUELS