Lustown Baba handled the step up to Listed company with aplomb when cruising to victory in the TRM Waterford Testimonial Stakes at the Curragh.
Willie McCreery's three-year-old filly had won a handicap at the track from a mark of 84 only on Sunday.
Raised 16lb in the ratings for that success, she looks set for another hefty hike - given the manner of her latest victory.
Settled off the pace by Leigh Roche, she steadily picked them off before joining Denis Hogan's star and winner of the race last year, Make A Challenge.
Roche then needed to give the filly only a shake of the reins to leave Make A Challenge swiftly behind, winning by two and a quarter lengths.
Lustown Baba (5-2) well and truly falls into the category of 'when a filly starts to improve you never know when they are going to stop'.
"That ground was holding today, but Leigh said she loved it," said McCreery.
"I thought she was a bit too far back - but Declan (McDonogh who rode another McCreery, runner Downforce, who finished third) said they went very hard early on, so it probably suited her.
"I thought she did it well there - she loved that ground and is an improving filly. She's an exciting filly for next year.
"It was tacky today, (and) Leigh was out the back, but there is no muck on him."
McCreery has taken a patient approach with Lustown Baba so far, and will continue to do so.
He added: "The (Back Road, owners) syndicate were patient with us last year and have been patient this year, because they were looking for races during the summer but I said 'lads we can't run this one on quick ground yet as she's a big filly and needs more time'.
"Their patience has paid off. I'm delighted for Finn Sheedy, who bred her, as I think that's the first black-type in the family.
"That's it for the year - she's had two quick runs. I thought she was far relaxed today, and what more could we ask of her?
"We'll have plenty of time next year for her. She's a fine, big filly."
Meanwhile, Aidan O'Brien's 2000 Guineas runner-up Wichita should make a full recovery from an injury picked up in Australia which, it was initially feared, might have ended his career.
He was in Australia preparing for the Crystal Mile, which was then to lead on to a crack at the Cantala Stakes at Flemington.
Wichita fractured his offside hind leg, having worked with last year's Derby winner Anthony Van Dyck - who is Down Under to run in this weekend's Caulfield Cup.
"They (John and Tom Russell, equine veterinary specialists) looked after him last night - they screwed his joint, and he's come out of it very well," O'Brien's travelling foreman TJ Comerford said.