Curvature and Gary Carroll© Photo Healy Racing
Third in the corresponding race last year, the Jessica Harrington trained Curvature went two places better 12 months on when easily winning the Listed Edmund & Josie Whelan Memorial Listowel Stakes at Listowel.
Prominent under Gary Carroll from the outset, the 5/1 chance tracked Mundi in the initial stages of the race.
Moving closer turning for home, Carroll led on the Lope De Vega filly early in the straight, kicking clear from over two furlongs out.
At the finish, Curvature had two-and-a-quarter-lengths to spare over the running on Princess Child with favourite Fleur De Chine back in third.
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Gary Carroll, who stepped in to take the ride in the absence of Colin Keane who was feeling unwell said: "I won on her last year and while she is a little bit tricky, gave me a lovely ride today. The rain came, which suited her, and she liked the track and finished third in this race last year.
"She can be keen and a little awkward but is getting better with age. The pace was nice, she quickened off the bend and got to the line well.
"I haven't ridden much for Mrs Harrington but the couple of spares I got have been lucky, so long may it last."
Additional reporting by Thomas Weekes.