Ella Parker's walk-off, three-run homer in the bottom of the seventh inning secured a 4-3 victory for Oklahoma over Tennessee in their Women's College World Series opener. Parker's second home run of the game overcame Tennessee pitcher Karlyn Pickens' strong performance. Oklahoma advances to face Texas, while Tennessee faces Florida in an elimination game. Oklahoma's win boosts their chances at a fifth consecutive national title.

Prepared by Emily Rhodes and reviewed by editorial team.