Dermot Weld produced Along Came Casey at the peak of her powers to win Leopardstown's Listed Glencairn Stakes after 258 days off the track.
The Oratorio mare was last seen chasing home recent Queen Anne victor Declaration Of War at Dundalk in October and she was sent off the well-backed 7-2 second-favourite on her return.
Banna Boirche conceded the lead to Flying The Flag turning into the straight but Leigh Roche was still sitting motionless on Along Came Casey and she didn't disappoint when asked to go about her business two furlongs out.
The turn of foot she showed was electric and she ultimately had four and a half lengths to spare over Brendan Brackan, who ran on from the rear to take second.
Sudirman made it third time lucky in the Irish Stallion Farms EBF Maiden.
The son of Henrythenavigator stepped up on her debut run at Naas when getting within a length of Sir John Hawkins at the Curragh last month and didn't need to improve on that form to break through.
Settled in third by Wayne Lordan, the 4-5 favourite stayed on strongly to lead with 200 yards to run and eased to a four and a half-length victory over Home School.
Scintillula justified 6-5 favouritism with a good performance under Kevin Manning in the Irish Stallion Farms EBF Fillies Maiden.
Jim Bolger's representative was disappointing when stepped up to 10 furlongs at Leopardstown on her seasonal return, but the drop to a mile saw her run out a two and a half-length winner over Belle De Crecy.
Zalty swept home late to nail dead-heaters General Brook and Queen Of The Sand close home in the Leopardstown Summer Music And Racing Festival Handicap.
David Marnane's progressive colt still had most of his seven rivals in front of him turning in but the 5-1 shot really got rolling inside the final furlong.
He responded willingly to Fergal Lynch's urgings and just got up to score by half a length.