A power packed ride on Foreign Affairs in the Listed Challenge Stakes was the highlight of a treble for Declan McDonogh at Leopardstown.
The in-form jockey showed great strength on Sir Mark Prescott's raider after setting a searching pace from the start.
He stoked his mount along from half-way and kept him going well down the straight to hold the late run of Mkuzi by three lengths.
McDonogh had earlier partnered two winners for owner Lady Chryss O'Reilly.
Medico ran out a convincing two-length winner of the Vodafone Free Calls For Life Handicap after leading just inside the furlong marker.
'He worked with a filly rated 70 on Saturday morning and wouldn't go past. The trainer sleeps a lot but he sleeps even more. He was great today and likes it here - he's a Dub!' said winning trainer Eddie Lynam.
Dimenticata gained a deserved success when running out an easy four-length winner of the Vodafone Passport Fillies Maiden.
The Kevin Prendergast-trained filly, runner-up on her last two starts, will now be aimed at a conditions event on Heinz 57 day (Curragh August 13th).
Chanting swooped in the final furlong to claim the Listed Silver Flash Stakes under Kieren Fallon.
David Wachman's filly took time to find top gear but wore down Miss Beatrix late on to score by a length and three quarters.
'She's a big filly and will be better suited by a bit further,' said Wachman. 'She's in the Group 2 Debutante Stakes here (July 29th) but that may come a bit quick and we'll see how she comes out of this.'
The Vodafone Community And Fun Claiming Race produced a good finish with Oriental Ben getting a split inside the final furlong to beat Princess Triptych by three-quarters-of-a-length.
The winner was claimed for 8,100 while Oversighted was claimed for 28,000 by Gary O'Shaughnesy.
Tom Molloy made all on Cat On The Luas to claim the opening apprentice race while Pent House looked a useful filly when making a winning debut in the Vodafone Mobile Working Maiden.
The feature event at Killarney provided a dramatic finish with Stadium Project flying home to deny Levitator by half a length in the shadow of the post.
It was a similar story in the Irish Stallion Farms EBF Fillies Handicap with Tadhg O'Shea conjuring a storming late finish from Clara Allen.
Majella's Boy cruised home in the Ladbrokes Handicap Chase while Academy Jo had to grind out his success in the opening Cellar One At The Ross Beginners Chase.
Khachaturian opened his account when taking the Kirby's Brogue Inn/Lanterns Hotel Maiden while Glazier Mist also got off the mark when landing the Grand Hotel Patsy Sheehan Memorial Handicap.
