Joseph O’Brien on Order of St George romps home to win the Irish St Leger at the Curragh as part of the Longines Irish Champions Weekend. Photograph: Donall Farmer/Inpho

Aidan O’Brien and Coolmore Stud put a triple-Group 1 Curragh seal on a stunning ‘Irish Champions Weekend’ dividend for Irish racing’s dominant team. O(...)

Order Of St George ridden by Seamie Heffernan on their way to winning the Palmerstown House Estate Irish St Leger Trial Stakes late year  at the Curragh. Photograph: Brian Lawless/PA Wire

Aidan O’Brien’s decision to split his St Leger team can result in the trainer conquering both weekend classics with Order Of St George set to put it u(...)

 Craig Williams rides Gordon Lord Byron to victory in the George Ryder Stakes during Guineas Day at Rosehill Gardens on March 29th, 2014 in Sydney, Australia. Photograph: Brendon Thorne/Getty Images

If the perfect race could be designed for Gordon Lord Byron it might just be Sunday’s Prix de la Foret at Longchamp and Irish flat racing’s fairy-tale(...)

 Frankie Dettori smiles after winning  The Qatar Prix Vermeille at Longchamp racecourse. Photograph:  Alan Crowhurst/Getty Images

Frankie Dettori’s comeback from a high-profile drugs ban could get the perfect Prix de l’Arc de Triomphe denouement in 20 days time and although the J(...)

Joseph O’Brien on Leading Light (front), one of Aidan O’Brien’s two runners in the Ladbrokes St Leger at Doncaster today. Photograph: /Cathal Noonan

The shape of two classic races, today’s Ladbrokes St Leger at Doncaster and tomorrow’s Gain Irish St Leger at the Curragh, is set to come down to the (...)