03/10/2005 12:00AM

Etc. . . .

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Corey S. Johnsen, president of Lone Star Park and Remington Park, was elected president of the Thoroughbred Racing Associations by the group's board of directors Thursday. He succeeds Joe Harper, president of the Del Mar Thoroughbred Club, whose two-year TRA term expired. . . . Samando (7.80-1) won Thursday's Group 3 Prix Exbury at Saint-Cloud by a head over the 9-5 favorite, Lord du Sud. Her time for the 1 1/4 miles on heavy ground was 2:16.40. . . . Satin Kiss led throughout at Nad Al Sheba on Thursday night to add the UAE Oaks to her UAE 1000 Guineas title with a 3 1/4-length victory over Littletown Bridge. She covered the 1 1/8 miles in 1:53.28. . . . Best Mate has been withdrawn from next Friday's Cheltenham Gold Cup Chase after breaking a blood vessel while training in England on Thursday. The injury will prevent Best Mate from seeking a fourth consecutive victory in the race.