Seattle Slew: The First Undefeated Triple Crown Winner
Who was Seattle Slew? Seattle Slew (1974–2002) was an American Thoroughbred who became the 10th Triple Crown winner in 1977 and the first horse in history to win the Triple Crown while undefeated. Justify matched the feat in 2018, making them the only two undefeated Triple Crown winners among the 13 Triple Crown champions as …