Derby (horse race) four-year-old Thoroughbreds, and the Canadian Pacing Derby, an annual harness race for "aged pacers" (Standardbreds) four years old and up. In Scandinavian harness racing Derby is restricted to four-year-olds. Exception is the Finnhorse Derby, which is restricted to five-year-olds. Derby (horse race) A derby ( , ) is a type of horse race named after the Derby Stakes run at Epsom Downs Racecourse in England. That was in turn named after Edward Smith-Stanley, 12th Earl of Derby, who inaugurated the race in 1780. Perhaps the best-known example after the original is the Kentucky Derby in the United States. Traditionally, the
Churchill Downs usual number of people seated at the derby is 50,000 people, though crowds can reach over 150,000 on Derby day. The dirt oval main track, on which the Derby is run, is one mile (1.6 km) in circumference and is wide, with a section for the starting gate. A turf track, inside the main track, is in circumference and wide. From 2001 to 2005, Churchill Downs underwent a three-and-a-half year, $121 million renovation. The clubhouse was replaced, 79 luxury suites were added, and the historic twin spires were refurbished. One of the additions in the clubhouse was a mural by