1973 Belmont Stakes a sloppy track. However, Knightly Dawn was scratched prior to race day. The horse's scratch also reduced the winner's share from $150,200 to $90,120. There was much speculation going into the Stakes over Secretariat's bid for the Triple Crown. Since 1948, when Citation achieved the feat, there had been six horses that had won both the Kentucky Derby and the Preakness Stakes before failing in the Belmont Stakes. When comparing Secretariat to those six horses' health and fitness before the Belmont Stakes, writer Bonifice felt Secretariat was in the best shape, almost as good as when he entered the Kentucky
Kentucky Derby changed to the first Saturday in May to allow for a specific schedule for the Triple Crown races. Since 1931, the order of Triple Crown races has been the Kentucky Derby first, followed by the Preakness Stakes and then the Belmont Stakes. Prior to 1931, eleven times the Preakness was run before the Derby. On May 12, 1917 and again on May 13, 1922, the Preakness and the Derby were run on the same day. On eleven occasions the Belmont Stakes was run before the Preakness Stakes. On May 16, 1925, the first live radio broadcast of the Kentucky Derby