Breeder’s Cup horses cleared from any steroids useThe California Horse Racing Board (CHRB) announced last Tuesday that none of the horses that participated in the Breeder’s Cup World Championships tested positive for any prohibited substance such as TCO2 and anabolic steroids.

All samples from the Breeder’s Cup horses were collected Monday night and were sent to the Kenneth L. Maddy Equine Analytical Chemistry Laboratory at the University of California-Davis. Testing was completed Tuesday morning with results showing that none of the horses failed the drug test. The Maddy lab tested for 45 anabolic steroids and hundreds of other prohibited drugs.

All horses underwent pre-race and post-race testing for TCO2 levels in blood. However, post-race testing was only performed on the first three finishers in all 14 Breeders’ Cup races plus additional random horses selected by the stewards. Post-race testing was additionally done on urine samples.

A random out-of-competition testing was done on 25% of the horses pre-entered in the competition. This is in addition to the routine testing done for the Breeder’s Cup. US samples were brought and analyzed in the Maddy Laboratory while samples from international competitors were brought to racing laboratories in France, England and Ireland.