The Dubai Duty Free Irish Derby produced a fairytale result as brothers Joseph and Donnacha O’Brien combined to land Ireland’s richest race with Latrobe, denying their father Aidan who trained the next four horses home.

The success was a remarkable third classic for 19-year-old Donnacha this season while it was a first classic for Joseph as a trainer, at the age of 25, having previously won this race twice as a jockey.

Latrobe, owned by Australian magnate Lloyd Williams, was one of the less heralded runners in the field pre-race and was allowed to go off at a price of 14/1.

In his post race interview Joseph pointed out that the in-running decision by Donnacha to abandon the plan and race Latrobe up with the pace was the winning of the race. The son of Camelot was perfectly positioned heading into the straight and although vulnerable to both long-time leader Rostropovich and favourite Saxon Warrior on either side, he kept on bravely for a famous win.

Aidan O’Brien spoke more as a father instead of his primary role as Ballydoyle trainer after the race when he said: “You couldn’t dream it up. It was a great race, a great finish and it is an unbelievably special day.

“I was hoping for the two lads that he (Latrobe) would keep going. They work so hard and it would have been a sickener for them if they had gotten chinned.”

Joseph added: “I’m just so grateful and so lucky to be in this position and there’s so many people to thank, especially Lloyd and Nick (Williams) who have been great supporters of mine.

Donnacha said: “I did think that he would run well and the race set up nicely for him. We went steady, I was able to go forward on him and then when he needed to he showed a lot of guts and determination which is what you’d expect from a Camelot.”

Fox takes Pretty Polly

The other Group 1 race at the Curragh over the weekend, the Juddmonte Pretty Polly Stakes on Sunday, went to a British raider, the William Haggas-trained filly Urban Fox.

Making a quick reappearance after Royal Ascot where she had proved disappointing in the Duke of Cambridge Stakes, the four-year-old was a different proposition on Irish soil, and in the hands of Daniel Tudhope, she easily dispatched Aidan O’Brien’s Oaks heroine Forever Together.

There was success for O’Brien elsewhere on the weekend as he took five of the six stakes races and eight races in all over Irish Derby festival. The pick of his winners going forward could be Curragh Cup victor Flag Of Honour who stayed on strongly to deny stablemate Giuseppe Garibaldi. O’Brien mentioned races like the St Leger and the Melbourne Cup post race.

Elsewhere, Jessica Harrington continued her fine form with a double on Saturday, headlined by I’m So Fancy who landed a listed contest. There were also impressive handicap runs from Mick Halford’s Petticoat and Richard O’Brien’s Maths Prize.