Dynamite Katie turned in a game performance to break her maiden at Dundalk on Friday evening and become the latest first-crop winner for Kessaar.
Trained by Natalia Lupini, the filly raced prominently under Dylan Browne McMonagle and always had enough in reserve to hold off Brasilian Princess.
Dynamite Katie was bred by Littlejohn Bloodstock Ltd out of My Kathleen, a Roderic O'Connor half-sister to Listed winner Balaythous.
She continues a fine season for Kessaar, which began at Newmarket's Craven meeting in April with the impressive debut success of the Roger Varian-trained Tajalla. Other highlights include the Group 3-placed Ipanema Princess and the tough Listed-placed Bolt Action.
Kessaar will stand for €5,000 in 2023.