Oklahoma's Brittany Williams drove in a pair of runs with a first-inning double and Callie Parson added a two-out, inside-the-park home run in the sixth inning to lift the No. 7-seeded Sooners to a 3-1 victory over Louisiana-Lafayette in an elimination game before an announced crowd of 9,192 on Saturday at ASA Hall of Fame Stadium/ OGE Energy Field.