None of the horses that participated in this year’s Breeders’ Cup World Championships Oct. 24-25 at Santa Anita tested positive for steroids, blood-doping agents or TCO2 (bicarbonate), according to Pam Blatz-Murff, senior vice president of operations for the Breeders’ Cup.


However, as of Nov. 8 test results for any other prohibited substances were not available because of the testing process used by the California Horse Racing Board (CHRB).


Under Breeders’ Cup and CHRB rules banning anabolic steroids, tests were conducted on the first four finishers and one additional horse selected at random in each race. The steroid rules, in place for the first time at the Breeders’ Cup, called for disqualification and purse distribution, and a possible one-year suspension for the trainer of any horse testing positive.


The blood-doping tests were conducted under “out of competition” rules 10 days before the races. Any horse testing positive would have been ineligible for competition, with the trainer facing suspension. The TCO2 tests were conducted in the detention barn prior to each race, with a purse forfeiture and trainer sanctions for any positive tests

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