Aidan O’Brien’s Cougar Mountain (right) was a fast-finishing third to Solow in the Queen Anne Stakes at Royal Ascot. Photograph: Alan Crowhurst/Getty Images.

Aidan O’Brien has a history of upsetting Derby winners in the Coral Eclipse and this time possesses an unknown factor in Sandown’s Group One highlight(...)

 Aidan O’Brien will run Cougar Mountain in the  Sandown feature: “We will step him up in trip now and he’ll go for the Eclipse.” Photo:  Steve Parsons/PA

The unbeaten Derby winner Golden Horn is a heavy odds-on favourite for Saturday’s Coral Eclipse but will have to overcome Aidan O’Brien’s older star C(...)

President Michael D Higgins congratulates trainer Dermot Weld after Eshera beat Aimhirgin Lass in the  European Breeders Fund Maiden at the Curragh last week. Photograph:  Pat Healy/PA

It is 25 years since Dermot Weld landed a historic classic triumph with Go And Go in the Belmont Stakes and the trainer is set to return to the New Y(...)

Trainer John Gosden and William Buick celebrate Jack Hobbs winning the 150th Dubai Duty Free Irish Derby at the Curragh. Photograph: Pat Healy/PA

Saturday’s landmark 150th Dubai Duty Free Irish Derby saw John Gosden’s notable achievement in preparing Jack Hobbs to win Ireland’s premier classic j(...)

Seamus Heffernan on Bondi Beach (left) wins the At the Races Curragh Cup from  Ryan Moore on Order of St.George. Photograph: Lorraine O’Sullivan/Inpho

Over almost two decades Seamus Heffernan has played second-fiddle to a succession of high-profile No.1 Ballydoyle riders but Diamondsandrubies was jus(...)

Ryan Moore wins the Ribblesdale Stakes on board Curvy during Royal Ascot on June 18th. Photograph: Alan Crowhurst/Getty Images.

History will reverberate throughout the running of the 150th Dubai Duty Free Irish Derby so a first success for Ryan Moore in Ireland’s premier classi(...)

Jack Hobbs’ jockey William Buick is aiming to break his duck in the Irish Derby. Photograph: Getty Images

It is 20 years since Sheikh Mohammed tasted Dubai Duty Free Irish Derby success but in Jack Hobbs the ruler of Dubai has an odds-on favourite to secur(...)

Joseph O’Brien celebrates winning the Irish Derby on Australia last year with his father and trainer Aidan O’Brien, owner JP Magnier, and other connections and relatives. Photograph: Morgan Treacy/Inpho

This Saturday sees the 150th Irish Derby at the Curragh, a landmark moment in the history of Ireland’s premier classic race with its evocative roll ca(...)

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 (...)

Jockey Christophe Soumillon celebrates his winning ride on Ervedya in the Coronation Stakes during day four of the 2015 Royal Ascot Meeting. Photograph: Steve Parsons/PA Wire.

There are few things more likely to polarise opinion than a jockey and there are few more polarising jockeys on the world stage than Christophe Soumi(...)