OKLAHOMA CITY — Paige Parker threw a two-hitter for her second shutout of the day, and Oklahoma remained alive in its quest for a third straight national title with a 2-0 win over Florida that eliminated the second-seeded Gators from the Women's College World Series on Saturday night.It was an elimination game between programs that have combined to win the past five championships and played for the title last year.Florida finishes 56-11.Parker, a four-time All-American and four-time Big 12 Pitcher of the Year, threw 104 pitches and struck out eight to pick up her 10th career WCWS victory. In a 2-0 win over Arizona State earlier in the day, Parker gave up two hits and struck out seven.The Sooners (57-4) need to beat Washington twice on Sunday to reach the championship series.Oklahoma's Jocelyn Alo hit a monster home run into the wind off UF starter Kelly Barnhill in the first inning to put the Sooners up 1-0. It was her 30th homer of the season, tying the Division I single-season freshman record most recently accomplished by Oklahoma's Lauren Chamberlain in 2012.Oklahoma loaded the bases in the fifth inning off Aleshia Ocasio, on in relief of Barnhill, with two outs. Florida walked Alo to bring up Shay Knighten. Thought Knighten struck out, the pitch got away from catcher Janell Wheaton and allowed Caleigh Clifton to score and make it 2-0.Florida coach Tim Walton pulled Barnhill, an All-American, after two innings. Ocasio was solid, but she got no support from the offense.