The Triple Crown series is made up of the biggest three races in the country and some of the most important races in the world. It comes as no surprise, then, that many of America’s best racehorses have won one or more of the Kentucky Derby, Preakness Stakes or Belmont Stakes. But there are also plenty of fantastic Thoroughbreds that either lost those races or never got a chance to run in them. Brush up on your horse racing history and get the rundown on some of them below, in reverse chronological order.