1973 Belmont Stakes meant he completed the Triple Crown of Thoroughbred Racing. This was significant as he was the ninth horse to complete the feat and broke a 25-year drought where a horse failed to complete the achievement. Secretariat, Sham, Pvt. Smiles, and My Gallant were the first four horses to be entered into the Belmont Stakes. Secretariat, winner of both the Kentucky Derby and the Preakness Stakes, was the odds on favorite to win the event. The added distance of the Belmont when compared to the Derby and Preakness was found to be one potential reason for Secretariat to lose the race.
Kentucky Derby Challenge Stakes offered a purse of US$150,000 of which $90,000 comes from Churchill Downs and $60,000 from Kempton. In addition, if the race winner exercised their right to run in the Kentucky Derby, they would receive a further $100,000 bonus payment plus would be given an automatic spot in the ensuing two legs of the U.S. Triple Crown series, the Preakness and Belmont Stakes. No European-based horse has ever won the Kentucky Derby. The 2010 race was suspended and the 2009 winner, Mafaaz did not run in the Kentucky Derby, although he did run in the Blue Grass Stakes. Kentucky Derby Challenge