Aidan O'Brien saddled 4-9 favourite Sergei Prokofiev, a son of Scat Daddy who cost $1.1million as a yearling, and The Irish Rover.
Sergei Prokofiev looked poised to win for a long way, but Skitter Scatter (5-1) already had the benefit of prior run and fended off the market leader by a short head.
The Irish Rover showed promise in third place, but he finished another length and a quarter away from the Patrick Prendergast-trained winner.
Prendergast said: "You can't beat a (previous) run, although when I saw the race and what we were taking on I did consider not running her.
"She is the same at home and just wants to get her head in front.
"She wants six furlongs, really, and I can't run her on the turf at the moment as she makes no fist of soft ground.
"She'll go for the six-furlong fillies' Listed race (Juvenile Fillies Sprint) at Naas (May 20). She's pure honest and wants to win."
See the Irish Field this weekend for full Dundalk report