Romantic Proposal signalled her potential with a victory in the Dubai Duty Free Dash Stakes at the Curragh.

While the Eddie Lynam-trained horse may be a five-year-old, her career has been one of steady progression to date, but there was no doubt this performance was a career best.

A close second in a Group Three last time out, she was dropped out in last place by Chris Hayes before picking up stylishly with a furlong to run and putting the race to bed some way out.

The 11-4 favourite beat Teresa Mendoza by a length and a half with Quarantine Dreams third.

"She's getting better. We took our time with her and didn't run her at two, progressed at three and this idiot thought she might be a miler!" said Lynam.

"Clipper (Logistics Group, owners) have always had a horse with me and I've had a good bit of luck for them. We don't have many owners so it's nice to be able to do something good for them and they have been very patient.

"She was always going well but I thought we were running out of furlongs and then she got there in a heartbeat.

"She's not ground dependent but if it came up slow she might take her chance in the Sapphire, which is back to five. If it didn't, there are plenty of other options.

"I've been quite ambitious and she's the first one that I've entered up in a Group One (Nunthorpe) for a long time. I think she's good, but the handicapper thinks she's only 101 and he's usually right. I think she's a bit better than that but time will tell."

Go Bears Go repaid the bold decision of his connections to supplement for the GAIN Railway Stakes with a striking success.

Narrowly beaten in last week's Norfolk Stakes at Royal Ascot when drawn on the opposite side to winner Perfect Power, he handled the extra furlong with aplomb.

Just nine days after that effort, and with a journey to Ireland thrown in, Go Bears Go showed bright early speed before his jockey Rossa Ryan was content to take a lead off Frankie Dettori on The Acropolis.

With two furlongs to run there were only two jockeys not asking their mounts for everything, Ryan on the eventual winner and Chris Hayes on Fozzy Stack's Castle Star, who had been dropped out last in the early stages.

While Castle Star was able to go by all his other rivals, he could not reel in Go Bears Go and his chance eventually evaporated when he began to drift to his right.

Go Bears Go (17-2) kept straight and true, though, and for his upwardly-mobile trainer David Loughnane - who broke his Ascot duck last week - it represented the biggest win of his fledgling career.

It was a similar sentiment for Ryan, who only returned on Friday after recovering from a broken collar bone and an appendicitis operation.

"He ran a super race in the Norfolk - he was just the wrong side. We were so positive that he'd stay six furlongs," said Ryan.

"It was a big toss-up before Ascot between the Norfolk and the Coventry. Dave took a massive risk coming here a week later. We're glad it's paid off.

"He's a top-class sprinter in the making I think. He's got the best attitude being by Kodi Bear.

"A big up to Robson Aguiar (bloodstock agent) and his team, who did prep this lad for the breeze-ups, and they prep a good few of our yearlings. They did a fantastic job with him.

"To Dave Loughnane and all his team, they've been rock solid. I have the easy job of steering them and I can only say thanks to everybody.

"I had a hard month. Everybody at Oaksey House got me through it.

"I have to give a massive thanks to my boss Kia (Joorabchian) and everyone at Amo Racing because they had the faith in me to get back on these on such a big weekend and do it."

Jessica Harrington's Cadillac returned to action with a gutsy success over Dawn Patrol in the ARM Holding International Stakes.

Having raced in top-class company as a juvenile, Cadillac had not been seen since running creditably at the Breeders' Cup.

Beaten half a length by subsequent Irish Guineas winner Mac Swiney in the Futurity Stakes, he went on to win on Irish Champions Weekend - booking his ticket for America - before finishing fifth in the Dewhurst.

He lost little in defeat in the Juvenile Turf, coming home fourth of 14 and Harrington was keen to given him plenty of time to get over those exertions.

Cadillac (9-4) seemed to have most to fear from Willie Mullins' True Self but having seen off her attentions close home, it was Joseph O'Brien's Dawn Patrol who threw down the last challenge to Shane Foley's mount.

He spent last year running over staying distances and was sixth in both the St Leger and the Long Distance Cup at Ascot, but he displayed a smart turn of foot over this 10 furlongs, only failing by a short head.

Harrington said: "I thought he was beaten. I'm delighted for the horse as things didn't go his way last autumn and to come back now, having had a bit of a setback earlier in the spring, is fantastic.

"We'll try to win a Group One with him. He may have one more run and then go for the Irish Champion Stakes. He loves Leopardstown.

"He's a proper horse to do that on his first run of the year. He had to squeeze through and do all the things he hadn't done before."

Watch the Dubai Duty Free Irish Derby Festival live on RTÉ2 and on the RTÉ Player this Saturday and Sunday from 1.45pm. Coverage also on Saturday Sport and Sunday Sport, RTÉ Radio 1, from 2pm.