LOUISVILLE, Ky. &ndash; Dundalk Dust, a 3-year-old Illinois-bred filly who was last of six down the backstretch, blew away her five older rivals with a sensational stretch run Thursday in a rain-soaked 95th running of the Grade 2, $161,250 Falls City Handicap at Churchill Downs.\r\nWith Shaun Bridgmohan riding for Chicago-based Chris Block, Dundalk Dust notched her first graded victory, finishing three lengths before front-running High Quail in the 1 1/8-mile Falls City. The winner returned $14.80 after finishing in 1:53.37 over sloppy going.\r\nHigh Quail, with Garrett Gomez aboard, set all the pace with Distinctive Dixie, the slight 2-1 favorite, in closest pursuit. Approaching the quarter pole, Ravi&rsquo;s Song made a looping move to become a threat, but as she began to sputter, it was a ferocious outside run by Dundalk Dust that got first money of $98,975.\r\n&ldquo;I had a real good trip,&rdquo; said Bridgmohan. &ldquo;She&rsquo;s a pretty neat little filly to ride. At the half-mile pole, she really jumped into the bridle for me.&rdquo;\r\nStriking Dancer, the 2-1 second choice, finished third, another 1 1/2 lengths back, followed by Ravi&rsquo;s Song, Third Dawn, and Distinctive Dixie.\r\nDundalk Dust, owned by the Dundalk 5 LLC of Tim Kindlon, had won 4 of 6 prior starts while finishing third and fourth in her two prior graded attempts, both against 3-year-olds at Arlington Park. She was coming off a sharp score over statebred fillies and mares in the Illinois Princess at Hawthorne in her first dirt attempt, a triumph that led Block to try open graded company when the Falls City came up with a short field. Dundalk Dust, by Military, now has earned $237,105.\r\n&ldquo;I felt like this filly would run real good,&rdquo; said Block, who won his third graded handicap at Churchill this year, following the Louisville with Free Fighter and the Cardinal with Askbutdon&rsquo;ttell. &ldquo;Her last work over the track showed she was entering the race ready to go.&rdquo;\r\nThe afternoon was so wet and dreary that the lights system was used throughout the 12-race card.