In 1939, Archworth also won the Prince of Wales Plate and Breeders' Stakes. In 1959, the Canadian Triple Crown of Thoroughbred Racing was formed using these races and the King/Queen's Plate, but only horses that won the races from 1959 onward were recognized as Triple Crown winners. It was not until 2014 that the early winners of the three races were retroactively acknowledged. Archworth then became known as Canada's second Triple Crown winner.
