Harasiya kept her unbeaten record intact with a taking performance in the feature Silver Flash Stakes at Leopardstown.
John Oxx's Pivotal filly was stepped straight up to Group 3 level following a debut win over the same seven-furlong course last month, but she proved well up to the task.
After settling the 11-8 favourite off the pace for the early parts of the race, Johnny Murtagh brought his mount with a sweeping run towards the centre of the track approaching the furlong marker.
She showed a bright turn of foot to immediately put daylight between herself and the rest of the field and stayed on to score by two and a half lengths from front-runner My Special J's.
Stan James cut her to 12-1 second-favourite from 25s for the 1000 Guineas.
Nevis (4-6 favourite) justified strong support with a three-length victory in the Irish Stallion Farms EBF Maiden, prompting quotes of 20-1 for the Derby.
Having landed the race for the past three years, including with the brilliant Camelot 12 months ago, it was not hard to see why Aidan O'Brien's colt was proving so popular before the one-mile heat.
And despite finishing a place behind the reopposing Mister Aviation on his Curragh debut, the son of Dansili duly left that form well behind with a commanding pillar-to-post success under the trainer's son, Joseph.
The O'Brien team doubled up with 4-7 shot Unanimous, who broke his duck at the seventh time of asking in the leopardstown.com Maiden.
The Listed Challenge Stakes went to 6-5 market leader Galileo's Choice for race specialist Dermot Weld.
Denis Hogan's Inis Meain (2-5 favourite) defied a 5lb penalty for his Monday night Killarney triumph when following up under Joe Doyle in the Leopardstown Apprentice Handicap, while Footprint (7-2) won the "Roy Seven" Rated Race for Pat Martin and Chris Hayes.