Bob Baffert is back at the Kentucky Derby for the first time in four years, having served his punishment for Medina Spirit’s failed drug test and coming to the place where he’s won a record-tying six times. He’s settled in at his old Barn 33, the signs boasting of his Churchill Downs triumphs again hanging on the outside wall.

Three years after Medina Spirit's victory was stripped due to a failed drug test, Baffert looks to reclaim his place at Churchill Downs.

Bob Baffert will go for a record 7th Kentucky Derby win at Churchill Downs on Saturday. Here's a look back at his history in the Run for the Roses: