Transworld was an American-bred, Irish-trained Thoroughbred racehorse and sire. Bred in Kentucky he was sent to race in Europe after being sold for $375,000 as a yearling. His brief racing career comprised only five races between May and September 1977 but he showed himself to be a high-class staying colt with wins in the Churchill Stakes, Ulster Derby and Irish St Leger. He returned to America his stud career and had some success as a breeding stallion. Transworld died in 2001 at the age of 27.
Transworld was unraced as juvenile in 1976 and made his debut in the Group 2Gallinule Stakes over one and a half miles at the Curragh in May 1977. He showed some promise but finished unplaced behind his stablemate Alleged. In June he was sent to Ascot Racecourse in England for the Churchill Stakes, which was run over one and a half miles on the Saturday following the Royal Ascot meeting. He started favourite and overcame some difficulties in running before pulling away and winning by four lengths from the Guy Harwood-trained Mallard Song. Later that month he was sent to Down Royal in Northern Ireland and recorded a very easy wi in the Ulster Derby. In August at the Curragh he attempted to win his third consecutive race in the Blandford Stakes but was beaten a length into second by the Dermot Weld-trained Panamint with the filly Sassabunda in third. In the Irish St Leger at the Curragh on 17 September Transworld was partnered by Tommy Murphy after Lester Piggott opted to ride the O'Brien stables main hope Valinsky, the winner of the Geoffrey Freer Stakes. Despite being rejected by the stable's top jockey, the colt was strongly supported in the betting market and started the 13/2 third choice behind Valinsky and Panamint. The other six runners included Sassabunda, Orchestra and Aristocracy. Murphy sent Tranworld into the lead from the start and was never seriously challenged, shaking off his closest pursuer Valinsky early in the straight and drawing clear of the field to win by four lengths from Orchestra. His victory gave Vincent O'Brien a third consecutive win in the contest after Caucasus in 1975 and Meneval in 1976. At the end of the year the independent Timeform organisation gave Transworld a rating of 121, sixteen pounds behind their Horse of the Year Alleged.
Stud record
Transworld was exported to the United States and was expected to continue his track career. He was, however, retired from racing to become a breeding stallion at Elmendorf Farm before moving to the Gainesway Farm in Kentucky and being relocated to the Stonewall Farm in New York in 1994. He died in June 2001 Alexander Farm near Byers, Colorado at the age of 27. The best of his offspring was the outstanding steeplechaserLonesome Glory but he sired several other top-class performers including Winton, Powder Break, The Hague and Only Queens.