Summit Surge was delivered with a strong late thrust by Keagan Latham to land the Ballycorus Stakes in some style.
The Ger Lyons-trained four-year-old (6-1) swung wide into the straight and still had plenty to do as the rest of the field struggled to get to grips with long-time leader Great War Eagle.
But the South African jockey had plenty of horse under him and hit the front in the final 50 yards before taking the Group Three prize by a length and a quarter.
Chintz delivered the goods in gutsy style on her introduction in the Irish Stallion Farms EBF Fillies Maiden for trainer David Wachman.
Wayne Lordan always had the daughter of Danehill Dancer close to the pace set by Rare Ransom and moved up to challenge soon after entering the home straight.
The pair pulled well clear and Chintz (9-1) got on top close home to win by half a length, with Takasima staying on nicely into third.
Punters who backed 1-3 favourite Egypt had their fingers badly burned in the Irish Stallion Farms EBF (C&G) Maiden.
Aidan O'Brien's colt just about hit the front over a furlong out but was immediately thurst aside as Agent Of Change swept down the outside under Kevin Manning.
Jim Bolger's 12-1 shot, last on his debut a week ago, was strongly pressed by newcomer Alyazwa in the closing stages but held on by a short head.
Chevie and Oasis Davis went off the 6-1 joint-favourites for what looked a tricky Sandyford Handicap and they had the race between them at the end.
Oasis Davis was always up with the pace and looked to have stolen a winning lead when going on in the straight, but Chevie was brought with a late run down the centre of the track by a cool Fran Berry and grabbed the verdict by a head in the shadow of the post.
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