Trainer Aidan O'Brien's 3-year-old filly Kamarinskaya broke her maiden in the Dimitrova One Thousand Guineas Trial (Ire-III) at Leopardstown Saturday to become part of Ballydoyle's Classic mix this season.The Kentucky-bred daughter of Storm Cat, sent off at odds of 8-1, defeated her better regarded stablemate Beauty Bright by two lengths in the seven-furlong event contested on soft to yielding ground. "Kamarinskaya is a possible for the Newmarket Guineas (Eng-I) and, like our other good fillies, there is also the French Guineas (Fr-I) to consider," O'Brien told Racing Post. "She had a couple of very good runs last year although she disappointed on her final start at Naas. But she is a fine big filly who has done well since last season, and she will come on for the run." Seamus Heffernan rode the winner, who is out of the Mr. Prospector mare Mr. P's Princess and was bred by Pacelco SA. She made the lead early and made the pace until the final furlong, when she pulled away. Beauty Bright, favored at 5-4, raced in mid-pack before launching her bid approaching the furlong marker, but she could not match the winner. Ugo Fire finished a short head behind the runner-up in third, and it was another head to fourth-place finisher Mrs. Snaffles.O'Brien said the Poules d'Essai des Pouliches (Fr-I) is a more likely target for Beauty Bright. Also at Leopardstown, Chris Catlin guided Yasoodd, trained by Mick Channon, from last to win the Two Thousand Guineas Trial (Ire-III) by a neck over favored Heliostatic. Rekaab was a head farther back in the one-mile event that drew a field of five 3-year-old colts and geldings.