Magical landed a gamble to provide Aidan O'Brien with a remarkable 1-2-3 in in the QIPCO Irish Champion Stakes at a sun-baked Leopardstown on day one of Longines Irish Champions Weekend. 

The well-backed favourite was perfectly positioned throughout under Ryan Moore to pounce coming into the straight and establish a race-winning move, though backers of Deirdre will wonder what might have happened had she enjoyed a clear run.

The first Japanese-trained horse to run in Ireland was caught in last place when the race developed and, pulled out by rider Oisin Murphy, flashed home to finish fourth.

However, the 11-10 favourite Magical still won readily by two and a quarter lengths. Having finished second to Enable three times over the past 12 months, the mare was finally happy to meet a field that did not include that other star mare.

Magic Wand was second, Anthony Van Dyk third as O'Brien won his first Champion Stakes since 2011, but his domination today is remarkable, as he has won three of the first four races.

Mogul was a convincing winner of the KPMG Champions Juvenile Stakes.

O'Brien's colt, a full-brother to dual Group One-winning stablemate Japan, had a length and a quarter to spare from Sinawann at the line.

Ryan Moore bided his time on the 1-2 favourite as Cormorant, another of O'Brien's three runners in the seven-strong field, set the pace in this Group Two.

Mogul, an all-the-way winner of a Curragh maiden over this same trip of a mile, produced telling acceleration to nose in front on the outside entering the final furlong and move clear.

O'Brien said: "We were delighted with him. He was trapped a little bit wide today and there was a nice pace on so he learned plenty.

"Ryan had to move early on him then and when he got to the front he had a good look. I'd say he would have learned plenty and we've been very happy with his progress form race to race so hopefully he'll progress on again.

"He just had to keep him up to his job to make sure something wouldn't run him down late. Ryan was very happy and very complimentary when he came in off him.

"He would have a choice of two races, probably the Dewhurst or the Vertem Futurity. We'll see how he comes out of it and the lads will decide on one of the two.

"We won't over-race him. His brother ran in a Group Two and didn't run any more (at two), but this horse looks four weeks ahead of his brother at this stage. Obviously we think he's a Classic horse, Guineas/Derby type horse."

Blissful, far side, with Ryan Moore, up, passes Nurse Barbara with Colin Keane, up, on the finish line to win

O'Brien and Moore had opened Irish Champions Weekend with a narrow victory for 13-2 shot Blissful in the Listed Ballylinch Stud Irish EBF Ingabelle Stakes.

A trip to Britain may now be in the offing for the two-year-old after her second successive - both by a nose, staying on strongly this time to lead on the line from Nurse Barbara.

O'Brien responded by pinpointing a Group One target at Newmarket next month.

"The Fillies Mile could be a possibility for her," he said. "She's very relaxed after and was in no way upset. I'd say she'd have no problem going into a Group race next and probably will end up getting a mile very well this year."

An O'Brien also won the other Group 1 on the card, the Coolmore Fastnet Rock Matron Stakes, but it was not Aidan this time, son Joseph taking the honours with 10-1 chance Iridessa. She ran around in the closing stages as hot favourite Laurens folded, Aidan's Hermosa going down gamely in second place.

Father was the first to congratulate son, who said: "I'm over the moon. She had a look when she got to the front but she was the best filly on the day."

The best filly bar Magical.