Horse racing in the United States Horses and inspired their name. With the exception of the longer, distance contests, Quarter Horse races are run flat out, with the horses running at top speed for the duration. There is less jockeying for position, as turns are rare, and many races end with several contestants grouped together at the wire. The track surface is similar to that of Thoroughbred racing and usually consists of dirt. The traditional high point of US horse racing is the Kentucky Derby, held on the first Saturday of May at Churchill Downs in Louisville, Kentucky. Together, the Derby; the Preakness Stakes, held two
American Quarter Horse by a group of horsemen and ranchers from the southwestern United States dedicated to preserving the pedigrees of their ranch horses. The horse honored with the first registration number, P-1, was Wimpy, a descendant of the King Ranch foundation sire Old Sorrel. Other sires alive at the founding of the AQHA were given the earliest registration numbers Joe Reed P-3, Chief P-5, Oklahoma Star P-6, Cowboy P-12, and Waggoner's Rainy Day P-13. The Thoroughbred race horse Three Bars, alive in the early years of the AQHA, is recognized by the American Quarter Horse Hall of Fame as one of the