Fairyland led home a one-two from the Aidan O'Brien stable in the Derrinstown Stud Flying Five Stakes at the Curragh.
The three-year-old filly ended a losing spell going back to last year's Cheveley Park Stakes to notch her second Group One prize as she held off the late challenge of So Perfect.
The free-going Caspian Prince made the running with Invincible Army and Soldier's Call close up, but Ryan Moore was never too far away before setting sail for home.
So Perfect came out of the pack, but the winning post arrived just in time Fairyland, who prevailed by a short head. Invincible Army was third.
Fairyland was cut to 9-1 for the Prix de l'Abbaye with Paddy Power and to 12-1 by Betfair, both from 20-1.
O'Brien said: "Her best run of the year was back at five at Ascot in the King's Stand. The ground was too soft for her at Haydock and she got upset in the stalls and banged her head before that (at York).
"You would have to be delighted with both of them, and I'd say they will go for the Abbaye.
"Fairyland is qualified now for the Breeders' Cup, but Mrs Stockwell and the lads will decide on that.
"She was bought originally to go to Galileo, so I'd doubt she will stay in training next year."
Love graduated to Group One company with victory in the Moyglare Stud Stakes.
One of four contenders for Aidan O'Brien in the seven-furlong contest but the choice of Ryan Moore, the Galileo filly was never far from the pace set by stablemate Tango and the Ger Lyons-trained Soul Search.
The previously unbeaten Albigna had Love (6-1) for company on her outside and was beaten by the time the field got to the furlong pole, where Love kept on strongly to hold the late charge of Roger Varian's 13-8 favourite Daahyeh by three-quarters of a length.
So Wonderful was third, having been a bit tight for room close home.
O'Brien said: "She's genuine, has a beautiful pedigree and stays very well. She has a beautiful action and when Ryan asked her to get down and lengthen she stuck her head out.
"She's been working lovely and progressing with every run. We thought she was a filly that would be crying out for a mile this year, and we were trying to keep her at seven for as long as we could with the view to coming here and then maybe finishing off in the Fillies' Mile and being a Classic filly next year.
"That family all get a mile and a half well at three so it's very exciting for her and she has a lovely mind, too.
"The ground was probably a bit soft for her the last day."
Pinatubo (1/3f) produce a devastating finish to scorch home in the Goffs Vincent O'Brien National Stakes at The Curragh pic.twitter.com/9V7LXEo6cP— RTÉ Racing (@RTEracing) September 15, 2019
Pinatubo produced an astonishing performance to land the Goffs Vincent O'Brien National Stakes at the Curragh.
Representing the connections that were successful in last year's renewal with Quorto, the Charlie Appleby-trained colt was sent off the 1-3 favourite for the Group One feature on the back of an unbeaten four-race campaign that had included victories at Royal Ascot and Glorious Goodwood.
Always travelling sweetly for William Buick, the Godolphin-owned Shamardal colt cruised to the front inside the three-furlong pole and when Buick let him loose with a furlong and a half to run, he simply rocketed clear.
The race was immediately over as a contest, with nine lengths eventually separating the winner from nearest pursuer Armory.
Tony McCoy rolled back the years when coming out on top on Quizical in the Pat Smullen Champions Race For Cancer Trials Ireland at the Curragh.
The record-breaking 20-times champion jumps jockey gave a vintage front-running performance on the Sheila Lavery-trained four-year-old to beat eight other top jockeys from both codes in the charity race that has received huge backing.
McCoy had his mount in the prime position from the start of the one-mile contest and soon had Quizical into a rhythm and travelling smoothly.
Despite top-weight, the 11-4 favourite galloped on resolutely to beat Aussie Valentine - ridden by McCoy's great friend and long-time rival Ruby Walsh - by a length and a half. Johnny Murtagh steered Red Striker into third place.
"You have to face it, what else do you do? Lay down and give up?"— RTÉ Racing (@RTEracing) September 15, 2019
Pat Smullen gives a positive update on a momentous day for him and other legendary jockeys that will raise a huge amount for charity. pic.twitter.com/B3irBtFUZg
McCoy said: "I'm very proud to be here today racing for a great cause. We can be very proud of horse racing in general in Ireland. The stable staff, racegoers, owners, trainers, jockeys - everyone has given so much support to the amazing man that Pat Smullen is.
"Pat is a special person and a great friend to us all. Unfortunately it's tough and sad circumstances what we're doing today, but it just shows you what a brilliant sport this is."
He added: "I genuinely always thought I was going to win! No, seriously, you want to compete against the very best, that is what sport is all about, and these are the best jockeys we are ever likely to see.
"I said I would never ride in a horse race ever again and I meant it, but I'm glad I did today. You want to compete against the best and that is what has made this special. I got on the best horse and that's what counts."
Smullen's popularity helped create the star-studded cast for the race. Dermot Weld's former stable jockey was forced into retirement after being diagnosed with pancreatic cancer - and as he is undergoing a second round of treatment, he was unable to ride in it himself.
Clearly moved by the occasion, Smullen said: "I'm really pleased for Sheila and John Lavery who own the horse. John was made up when he got AP to ride the horse and to get this result is what everybody wanted. It's absolutely amazing. I'm overcome.
"This is not about me. This is about people who are in this situation and we are out to raise a lot of money and make a huge difference going forward and give people confidence, as it does me. What a privilege to be involved in what is a great industry.
Tarnawa (3-1) gave Dermot Weld a fourth successive Moyglare 'Jewels' Blandford Stakes with a clear-cut victory in the Group Two over a mile and a quarter.
Chris Hayes had her well-placed behind the pace-setting Lady Wannabe and Credenza before asking her to go and win her race.
The Aga Khan-owned filly responded with a neat turn of foot that took her to the front and she ran on strongly to beat the staying-on Goddess with Credenza third.
Weld said: "This has been a lucky race for us, and Chris gave her a good tactical ride. The plan was to kick for home early as she gets a mile and a half.
"We'll see how she comes out of this race, and the Fillies And Mares race at Ascot on Champions Day would be a logical progression.
"She is a filly that I would look forward to training as a four-year-old, and she is very adaptable ground-wise.
"She is progressing all the time. She started winning in March for me and was on the go all year."
Tarnawa was cut to 10-1 from 16-1 for the Qipco British Champions Fillies And Mares Stakes at Ascot with Paddy Power and Betfair.
Buffer Zone continued the fine run of trainer Ger Lyons and jockey Colin Keane by taking the lion's share of the pot in the Irish Stallion Farms EBF 'Bold Lad' Sprint Handicap.
The four-year-old was produced to hit the front a furlong and a half from home and he saw off the other 11-2 joint-favourite Make A Challenge by a length and three-quarters.
Gulliver came from out of the clouds to claim third place, with Tom Hogan's admirable 11-year-old Gordon Lord Byron fourth.
Lyons said: "We thought he was a Group horse in a handicap, but they have to deliver. He's been very straightforward since we got him, and has gradually moved up the ranks.
"It never really looked in doubt. He's a very progressive horse, and hopefully he turns into a Group horse.
"He's in the Ayr Gold Cup next week. It's not our style to return (that quick). David (Spratt, part-owner) and I will sit down and make a plan."