Pale Mimosa gave trainer Dermot Weld his eighth win in the Seamus & Rosemary McGrath Memorial Saval Beg Stakes with a gutsy display at Leopardstown.
The lightly-raced filly had not run since October but she knuckled down really well to outpoint Missunited in the final furlong and put herself in the frame for the Gold Cup at Royal Ascot.
The Aidan O'Brien-trained El Salvador set a strong pace and still led as they turned for home but was soon overtaken by Pale Mimosa and Missunited.
Pat Smullen had to keep the 5-4 favourite up to her work to take this Listed contest by two and a half lengths from Missunited. El Salvador was third with the four other runners some way adrift.
"It was a very pleasing introductory run," said Weld.
"She has been slow coming into her coat so we took our time with her. She real only came into it in the last ten days and considering that I thought it was a very good performance.
"Pat said it was a very true run race and the second is very consistent.
"She is entered in the Gold Cup, but obviously she is in the same ownership as Rite Of Passage.
"He is in very good form and he will run in it unless the ground comes up firm, in which case she will run in it.
"One concern I had coming here today was ring rust and her fitness might get found out.
"We will look at all the nice staying fillies races across Europe for her now and we might travel with her. The Lillie Langtry (at Glorious Goodwood) and the Park Hill (at Doncaster) are possibilities.
"She stays well and she gave a good heave. We should see a nice improvement from her."
Dibayani (7-2) came with a powerful run to claim in the King George V Cup under a strong drive by jockey Declan McDonogh.
The O'Brien-trained Count Of Limonade looked like taking these Listed spoils when he hit the front in the straight under Joseph O'Brien after Fighter Squadron had made the running.
McDonogh had other ideas though as he forced Michael Halford's charge through on the far side to go on inside the final furlong and score by three-quarters of a length.
"It was a good performance. Everything went to plan. He settled well, they went an even gallop, he loved the ground and got the trip," said Halford.
"It took him a while to learn to settle but you couldn't fault him today. It work out terrifically and he quickened up lovely.
"He'll stick to these black-type races and could even go another furlong. Now we know he settles staying should be no problem."
Frankie Dettori had to settle for a second place from two rides at the Dublin track.
The Italian rode the Tom Taaffe-trained Defence Of Duress, the 11-2 favourite into the runner-up spot behind Jim Bolger's Cul Baire (8-1), ridden by Kevin Manning, in the RSM Farrell Grant Sparks Handicap.
His other mount Napa Star was tailed off last behind Fionnuar (13-2), also for the Bolger/Manning combination in the William Fry Handicap after being prominent in the early stages.
Dettori had his first winner since returning from a six-month drugs ban when Asian Trader struck at Sandown on Thursday evening.