Chapparral win continues O'Brien dominance Aidan O`Brien continued his dominance of the two-year-old scene when High Chaparral and Castle Gandolfo gave the Ballydoyle maestro a one-two in the Racing Post Trophy, the last Group One race of the season in Britain.There have been eight Group One races for two-year-old colts in Europe this season and O`Brien has won them all. Only last Saturday, he saddled the first three home in the Darley Dewhurst Stakes at Newmarket.And this success gave O`Brien his 21st Group or Grade One success this year with the Breeders` Cup meeting in New York to come later today.But punters got it wrong as it was the 9-2 second favourite High Chaparral, who floored the 8-13 favourite in the hands of Darley to give the champion jockey a double.Mr Sandancer set the early pace from O`Brien`s third member of the six-runner field, Camp David, in the mile race switched from the round course to the straight track because of the state of the ground.George Duffield, who took thisprize two years ago for O`Brien on Aristotle, committed the unbeaten Castle Gandolfo over three furlongs out.But Darley had the move covered and challenged inside the final furlong to take the spoils by three-quarters of a length. Redback (12-1) was five lengths further back in third. O`Brien`s Camp David was fourth. Godolphin`s Mount Joy could only finish fifth after pulling hard in the early stages.
