While the racing world awaits split sample testing and results for Medina Spirit , all of the other horses tested from this year’s Kentucky Oaks and Derby day cards at Churchill Downs have passed preliminary testing. According to experts, the fact that all other horses passed their post-race test reduces the likelihood that contamination factored in the post-race finding of would-be Kentucky Derby Presented by Woodford Reserve (G1) winner Medina Spirit. That triumph is in question, pending testing of the split sample, as trainer Bob Baffert revealed May 9 that Medina Spirit tested positive for the corticosteroid betamethasone in the initial post-race test. Based on […]