The term 'RACETRACK SITE' can be summarized as the Epsom Racecourse, a 5-letter word. Epsom Racecourse is a thoroughbred horse racing venue located in Surrey, England. It is one of the most famous and oldest racecourses in the United Kingdom, having been established in 1661. The course hosts two of the country's five Classics, the Derby and the Oaks, which are contested over the mile and a half track.