LOUISVILLE — A precedent-shattering Kentucky Derby came down to a stretch drive like few others in the 152-year history of the race. A race that looked wide open on paper became w-i-d-e open at the very end. Every few strides, the apparent winner changed.  A variety of dreams bloomed and died in a matter of seconds. Japan-based runner Danon Bourbon led coming off the final turn and looked like he was pulling away, opening up a two-length margin. Then massive long shot Ocelli (70–1) busted through traffic and rolled up alongside Danon Bourbon, seemingly taking command. But wait a second, on the outside here came Renegade, the morning-line favorite, overcoming the No. 1 post and looking like he would finally deliver hard-luck Derby horse owner Mike Repole to the winner’s circle.…