According to the premier register of thoroughbred horses in the U.S., all of the horses are between four and seven generations of Secretariat.

Kentucky Derby winner Sovereignty is not running in the Preakness Stakes and that means for a fifth time in the past seven years there is no chance of a Triple Crown champion going into the race

There will be no Triple Crown winner in horse racing this year. Sovereignty, the three-year-old thoroughbred who won the Kentucky Derby on Saturday, will not race in the Preakness Stakes – the second leg of the three races that make up the Triple Crown.