On the racetrack, they show a fierceness and tenacity that draws fans to them. The will to win pushes them to the front each time, showing the physical talents and mental fortitude that grabbed the attention of those who picked them out among thousands of young horses. These fillies and mares race at the highest levels, bringing their owners, trainers, and caregivers great victories that send them straight into the history books. They bond over early morning exercises and afternoon achievements.

Racing fans will have the unique opportunity to bid on and acquire halters and hats of this year’s Longines Breeders’ Cup Classic entrants during “Hats and Halters,” an online auction fundraiser that opens Oct. 25 and runs through Nov. 4 at 7 p.m. ET.