Updated: 05/03/2013 - The race track, big hats, and Mint Juleps it must be Derby time! The 139Th Kentucky Derby is tomorrow at Churchill Downs. From wagering on your favorite horse, to the glamorous Derby wardrobe, local businesses are helping you prepare. Where will you be when the words... "And they're off," ring out tomorrow? If you don't plan on making the trip to Louisville, Kentucky Downs is also preparing for a busy day.