Order Of St George, seen here winning the Irish St Leger at the Curragh, is one of four Aidan O’Brien-trained horses entered for the Melbourne Cup in November. Photograph: Donall Farmer/Inpho

Aidan O’Brien stamped his domestic authority with a ‘Champions Weekend’ Group One hat-trick and is now gearing up for what could be an epic internatio(...)

Curvy ridden by Ryan Moore wins the Ribblesdale Stakes during Royal Ascot 2015. Photograph: Alan Crowhurst/Getty Images

Attacking the Darley Irish Oaks in force has worked well for Aidan O’Brien in the past and the champion trainer is putting the ammunition in place (...)

John Gosden: trainer is expected to run Gretchen in Saturday’s evening’s €400,000 classic. Photograph: Alan Crowhurst/Getty Images

The top of the Darley Irish Oaks betting is dominated by home-trained fillies but the shape of the cross-channel challenge will become clear at Tuesd(...)

 Frankie Dettori riding Golden Horn to victory in The Investec Derby at Epsom. Photo:  Alan Crowhurst/Getty Images

Jamie Spencer will again partner The Grey Gatsby for his mouthwatering clash with Derby hero Golden Horn in the Coral-Eclipse at Sandown tomorrow. (...)

John Gosden, trainer of Irish Derby hopeful Jack Hobbs. Photograph: Paul Harding/PA

Ante-post favourite Jack Hobbs pleased trainer John Gosden in his final piece of work yesterday ahead of the 150th Dubai Duty Free Irish Derby at the (...)

Suits You ridden by Cristian Demuro (purple and white) gets the better of Ryan Moore and Ballydoyle to win the  Chesham Stakes at  Royal Ascot. Photo: Matthew Childs/Action Images via Reuters/Livepic

Undrafted won the Diamond Jubilee Stakes for Frankie Dettori and American trainer Wesley Ward. Ward is no stranger to success at the big meeting but (...)

Pat Smullen steering Free Eagle to win the KPMG Enterprise Stakes in Leopardstown last September. Photograph: Ryan Byrne/Inpho

If it is D-Day for Free Eagle then the ‘D’ stands for the Dermot Weld-trained star finally delivering on a towering reputation in Group One style. Th(...)

Pat Smullen is fourth favourite to be leading jockey at Ascot this week. Photograph: Donall Farmer/Inpho.

Ireland’s champion jockey Pat Smullen is rated a 14 to 1 shot by some betting firms to emerge as the leading rider at Royal Ascot this week and is se(...)

Jamie Spencer will ride The Grey Gatsby, pictured with trainer Kevin Ryan, in the Prince of Wales’s Stakes at Royal Ascot on Tuesday. Photograph: Inpho

Jamie Spencer has come in for the ride of The Grey Gatsby in Wednesday’s Prince of Wales’s Stakes at Royal Ascot for which 10 have been declared. Ryan(...)

Ruby Walsh and On His Own. They will line up in the €850,000 Grand Steeple-Chase de Paris  on Sunday. Photograph: INPHO/Dan Sheridan

The Cheltenham Gold Cup remains famously elusive for Willie Mullins, but Ireland’s champion trainer will hope the French version is more rewarding wh(...)