The feature race on the opening day of the Breeders' Cup went to John Velazquez as Forever Unbridled won the Distaff.
Third in the race last year, she made no mistake this time around.
Velazquez was a late jockey change, replacing Joel Rosario.
"She's really easy, she broke well and I got her back. I knew it was a short stretch so I didn't want to be too far back but I got to the front too soon," said Velazquez.
Trainer Dallas Stewart said: "She's such a great filly, she's three from three this year and since we've spaced her races she's been very successful."
Bob Baffert's Abel Tasman was second.