Dazzling lived up to her name with a most impressive racecourse debut in the Sapphire EBF Fillies Maiden at the Curragh.
Aidan O'Brien's juvenile is bred to be smart as a full-sister to dual Group One winner Roderic O'Connor and was an 11-4 chance for this first competitive racecourse appearance over a mile.
Forcing the pace from the outset in the hands of the trainer's son Joseph, Dazzling was strongly pressed from two furlongs down, but showed fine acceleration once let down to put the race to bed and beat her running-on stablemate Shell House by two and three-quarter lengths.
Favourite Sparkle Factor had every chance for the Dermot Weld team and ran with promise to finish third.
O'Brien snr, initiating a four-timer, said: "She's still very green, but you'd have to be delighted the way she did it. We thought she'd be very green and we weren't sure if she'd know enough to win first time, but she was well on top at the line.
"I knew he (Joseph) wanted to get a lead, but he was maybe just left in front. She's a big, strong, powerful filly - a big mile and a half type. We could step up anywhere now with her."
Dazzling holds an entry in the Fillies' Mile at Newmarket on September 27.