Secretariat.ACTUALLY Secretariat was the FIRST horse to win a Triple Crown Race in a record time.But he wasn't the biggest.Ha!
There is a filly that won the Triple Crown but it is the Filly Triple Crown also known as the Triple Tiara. The horse name is Ruffian. This horse is the first filly to win the Triple Crown.
Sir Barton was the FIRST horse ever to win the Triple Crown, at the 1919 Preakness Stakes.
Affirmed in 1978
He did win - twice
Secretariat became the first horse in 25 years to win the Triple Crown in 1973.
Yes, in 1978
Affirmed, in 1978.
Affirmed in 1978.