 We will soon see the first steps toward renovation of the historic Pimlico Racecourse, the home of horse racing's Preakness Stakes. All racing and training will come to an end September 1st so the horses can be moved to Laurel Racecourse while Pimlico is being overhauled. When the state of Maryland took over Pimlico, it created the Maryland Thoroughbred Racing Operating Authority, which will oversee the renovations. According to the Baltimore Sun, the engineers are still working on the timeline for when the old grandstand will be coming down.