High Quality Content by WIKIPEDIA articles! Colombo (1931–1954) was a British Thoroughbred racehorse and sire. In a career that lasted from April 1933 to June 1934 he ran eleven times and won nine races. Colombo was an outstanding two-year-old, unbeaten in seven races in 1933 and drawing comparisons with champions such as Isinglass,Persimmon and Bayardo. In 1934 he maintained his unbeaten record by winning the Craven Stakes and the 2000 Guineas at Newmarket and then finished third as the favourite in the Epsom Derby. After one more unsuccessful race he was retired to stud, where he had some success as a sire of winners until his death in 1954.