The evens favourite turned on the style inside the final quarter mile for Kevin Manning and won by three and a half lengths from Marquesa, with Kevin Ryan’s British raider Undaunted Affair two lengths away in third.
“She’s a lovely sort and she’ll head for the Railway Stakes at the Curragh next with the Moyglare Stud Stakes back there the long-term aim,” said Bolger.
Tax Free completed back-to-back victories in the Coolmore Choisir Naas Sprint Stakes, but had to survive a stewards’ inquiry.
The David Nicholls-trained six-year-old, ridden by his son Adrian, held the Brian Meehan-trained Day By Day by a length and three-quarters for a British one-two.
Day By Day looked set for success when setting sail for home two furlongs out but Tax Free (5-4 favourite) joined him at the distance and got on top in the closing stages to win going away.
Nicholls said: “He’s been a great servant and he tries very hard. People love that sort of horse.
“He won’t go to Royal Ascot. He’s been there before and he doesn’t like the place.
“We’ll continue to campaign him in France and Ireland as the prize money is better than at home.”
Bolger, successful in the feature, had initiated a double when new apprentice star Danny Mullins partnered My Girl Sophie to a smooth success in the Bill Whitehead Memorial Race.
It was Mullins’ fourth win from his first six rides, although he later received a caution from the Stewards following his use of the whip on Shaimaa, runner-up to Rose Hip (set to carry her penalty at the Curragh on Saturday) in the fillies handicap.
My Girl Sophie, troubled in the past by sore shins, will step into listed company next time and is expected to keep improving by her trainer.
Stakes races over ten to twelve furlongs, initially in Ireland and, in the longer term, in the United States, are on the agenda for the David Wachman’s Dress Rehearsal after her easy win in the ten-furlong fillies maiden.