Don John.

About Don John

Don John (1835–1857) was a British Thoroughbred racehorse and sire best known for winning the classic St Leger Stakes in 1838. In a racing career which lasted from May 1837 until April 1839 he ran ten times and won nine races, although three of his victories were walkovers when no rival appeared to oppose him. He was one of the leading British two-year-olds of 1837, when his three wins included the Champagne Stakes at Doncaster Racecourse. In the following year he returned to Doncaster where he recorded an emphatic win in the St Leger and then defeated a strong field of older horses in the Doncaster Cup. In the following year he was campaigned at Newmarket where he was beaten for the first time by Grey Momus in the Port Stakes. After one more win he suffered serious leg injuries which ended his racing career. He was retired to stud where he became a successful breeding stallion.