|Owner||1) Raymond R. Guest
2) Sir Patrick Hogan (at stud)
|Trainer||1) Clive Brittain
2) Charles G. Milbank (USA)
Prix de Tire Gerbe
|New Zealand Racing Hall of Fame (2008)|
|Infobox last updated on: October 20, 2009.|
Sir Tristram (IRE) (1971-1997) was an Irish-bred Thoroughbred racehorse who stood at stud in New Zealand, where he sired an extraordinary 45 Group One winners, including three Melbourne Cup winners. Sir Tristram was by the outstanding racehorse and sire Sir Ivor (by Sir Gaylord) out of Isolt (by Round Table), and had 19 starts for two wins in France.
Trained by Clive Brittain and raced in Ireland, England and France, owner Raymond Guest sent Sir Tristram to Churchill Downs in Louisville, Kentucky to compete in the 1974 Kentucky Derby. Under jockey Bill Hartack, the colt finished eleventh. 
Following his racing career, he was purchased by Sir Patrick Hogan of Cambridge Stud in New Zealand, and entered stud in 1976 at the modest stud fee of $1,200. By the time of his death in August 1997, his fee had risen to $200,000. 'Paddy', as he was affectionately known, had a reputation as a difficult horse to handle, although this is not a trait which seems to have been inherited by his progeny. In fact, he was so difficult that his handler was forced to wear protective gear, which remains on display at Cambridge Stud. Sir Tristram is the sire of over 140 stakes winners, including the Melbourne Cup winners Gurner's Lane (1982), Empire Rose (1988), and Brew (2000). He is also the broodmare sire of over 200 stakes winners, including the Melbourne Cup winners Saintly and Ethereal, and has earned himself a reputation as a sire of sires. His sire sons include Zabeel (who continues to stand at Cambridge Stud at a fee of $95,000), Marauding, Dr Grace and Grosvenor.
Whilst he was known as a sire of stayers, Sir Tristram's progeny and further descendants have excelled over a wide range of distances. As well as siring winners of the Melbourne Cup (the world's richest handicap - over 3,200 metres), Sir Tristram sired Marauding, who won a Golden Slipper (the world's richest two-year-old race - over 1,200 metres), and several other outstanding two-year-olds.