Irish · Churchtown, County Cork, Ireland · Born 9 April 1917 · Died 2009-06-01Irish trainer voted the greatest figure in horse racing history, who trained six Epsom Derby winners and the last British Triple Crown champion, Nijinsky, while building Ballydoyle and Coolmore into global racing powerhouses.
Michael Vincent O'Brien was born on 9 April 1917 in Churchtown, County Cork, and took over his late father's small string of jumpers in 1943, saddling his first winner as a licensed trainer that same year. A 400/1 ante-post double in 1944, with Drybob and Good Days winning the Irish Cambridgeshire and Cesarewitch, provided the financial foundation for his emerging career. O'Brien first dominated National Hunt racing, winning three consecutive Cheltenham Gold Cups with Cottage Rake (1948-1950) and a fourth with Knock Hard (1953), plus three consecutive Grand Nationals with three different horses - Early Mist (1953), Royal Tan (1954), and Quare Times (1955), a feat that remains unmatched. He then turned his attention fully to flat racing, establishing Ballydoyle stables near Cashel, County Tipperary in 1951, which he built into the most famous training operation in the world through relentless innovation, including regular horse-weighing and all-weather gallops. O'Brien went on to train six Epsom Derby winners - Larkspur (1962), Sir Ivor (1968), Nijinsky (1970), Roberto (1972), The Minstrel (1977), and Golden Fleece (1982) - and, most significantly, Nijinsky, who remains the only winner of the British Triple Crown since the Second World War. In the 1970s, O'Brien partnered with owner Robert Sangster and son-in-law John Magnier to found what became the Coolmore breeding empire, built on his prescient early belief in the Canadian stallion Northern Dancer, whose descendants would dominate global bloodstock for decades. O'Brien was twice champion trainer in Britain in both flat and National Hunt racing, the only trainer to achieve that dual distinction, and was voted the greatest influence in horse racing history in a 2003 Racing Post poll. He retired in 1994 and died at his Irish home in Straffan, County Kildare, on 1 June 2009, aged 92.
Training six Epsom Derby winners, including the last British Triple Crown champion Nijinsky, while building Ballydoyle and Coolmore into the world's dominant racing and breeding operations
How They Played
Meticulous, innovative trainer known for individualized attention to each horse, scientific methods including regular weighing, and an unrivaled eye for identifying future champions and stallions
Lasting Impact
Widely regarded as the greatest and most influential figure in horse racing history, whose achievements across both National Hunt and flat racing, combined with his pioneering role in modern bloodstock breeding, remain unmatched
Career Honours
- Trained 6 Epsom Derby winners, including Triple Crown champion Nijinsky
- 3x Consecutive Grand National Winner (1953-1955) with 3 different horses - unmatched feat
- 3x Consecutive Cheltenham Gold Cup Winner with Cottage Rake (1948-1950)
- Voted greatest figure in horse racing history (2003 Racing Post poll)
Irish Athletes