Is Aidan O’Brien related to Vincent O’Brien?

The simple answer is no, Aidan O’Brien is not related to the late Michael Vincent O’Brien, but the current ‘Master of Ballydoyle’ has much in common with his predecessor. Indeed, it was Vincent O’Brien who bought Ballydoyle House, in Co. Tipperary in 1951 and, later, along with his son-in-law, John Magnier, and the late Robert Sangster, established what became known as the Coolmore syndicate, for whom Aidan O’Brien has been private trainer since 1996.

Both Aidan and Vincent O’Brien began their training careers in National Hunt racing; both have the distinction of having won the Champion Hurdle at the Cheltenham Festival three years running, Aidan with Istabraq in 1998, 1999 and 2000 and Vincent with Hatton’s Grace in 1949, 1950 and 1951. Similarly, both men subsequently rose to become the dominant force in Flat racing, not just in Ireland, but in the whole of Europe and both became Champion Trainer in Britain, despite training on the other side of the Irish Sea.

What is the record for the most winners by a trainer in a single day?

As listed in the Guiness Book of World Records, the record number of winners trained in a single day is twelve. That was the number sent out by Michael W. Dickinson, at six different meetings across Britain, during the Bank Holiday programme on Boxing Day, 1982, and included Wayward Lad, winner of the King George VI Chase at Kempton Park. Apparently, while having dinner with his parents, Tony and Monica, in early November, Dickinson Jnr. announced, to the exasperation of his father, that he was going to break the world record for the number of winners in a day. He eventually ran twenty horses on Boxing Day, of which twelve won and just one finished outside the first three. The record is unlikely ever to be broken.