Equibase Inc., the racing industry's official data company, has amended the official winning margins in the 2006 Breeders' Cup Mile and 2006 Breeders' Cup Distaff. In the Mile, Miesque's Approval's winning margin was increased to four lengths from 2 3/4 lengths, and in the Distaff, Round Pond's winning margin was increased to 5 1/2 lengths from 4 1/4.