Frost Giant's impressive win in the Killavullan Stakes was the highlight of a treble for Kieren Fallon and Aidan O'Brien at Leopardstown.
The son of Giant's Causeway handled the heavy going well and proved much too good for his rivals in the Group 3 contest.
Fallon sent him into the lead a furlong-and-a-half from home and he went clear for a comfortable three-length success over Abigail Pett.
The Ballydoyle partnership completed a quick double when James Joyce also opened his account in the Irish Stallions Farms EBF (C&G) Maiden.
Fallon elected to come up the stands side on the 8/11f and his decision just about paid off as the Danehill colt idled on his own and Baron De'l finished well to get within a neck.
Briolette completed the treble when sticking to her guns gamely to land the Listed Trigo stakes later on the card.
The filly hit the front with a furlong-and-a-half to go and responded well to repel the challenge of Gift Range by a length.
The superbly bred Polished Gem opened her account with a determined effort in the opening Irish Stallions Farms EBF Fillies Maiden.
The Dermot Weld-trained daughter of Danehill and Irish 1,000 Guineas winner Trusted Partner held off the final furlong challenge of Sharapova by a length.
Good To Travel and Tullyorior Promise pulled clear of the field to battle out the finish of the Blue Cross Nursery with the former prevailing by a head for Kevin Prendergast and Michael Hussey.
Oliver Brady was celebrating again as Dancing Water gave him his second winner of the Bank Holiday weekend when staying on gamely to land the Elmwood Handicap under Chris Hayes.
The was a good finish to the Hawthorn Handicap with Indian Pace getting home by a neck from Water Side while Our Jaffa pulled away in final furlong of the JRA Handicap for a comfortable three-length success.
Jim landed the feature event at Galway when staying on gamely, under strong handling from Robert Power, in the Gardiner & Theobald Handicap Chase.
He asserted after the last and pulled right away in the straight to record a six-length verdict over Hi Cloy.
Southern Vic made a winning debut over fences in the WB Gavin & Co EBF Beginners Chase but had to battle to hold Slim Pickings by half a length.
Vic Venturi looked a horse to follow over the smaller obstacles when making a winning hurdling debut in the Diamond Vision Novice Hurdle.
Up Above also made a winning start over timber when producing an impressive front-running performance in the Connacht Court Maiden Hurdle.
