Legendary US trainer hit with two-year ban from Kentucky Derby over doping case A positive test was confirmed against Bob Baffert’s horse Medina Spirit. By AFP Thursday 3 Jun 2021, 10:52 AM 1 hour ago 1,008 Views 2 Comments Bob Baffert pictured earlier this year. Image: Brian Spurlock Image: Brian Spurlock LEGENDARY US TRAINER Bob Baffert was banned from the Kentucky Derby for two years on Wednesday, hours after confirmation of a positive drugs test against his winning horse Medina Spirit in this year’s race. A statement from Churchill Downs Inc, which operates the Kentucky Derby, said Baffert would be barred from entering horses at the track until the end of the 2023 Spring Meet.