No. 4 Nebraska outlasted No. 5 Arkansas 5-3 in 10 innings to close a wild opening night, Ava Kuszak crushing a two-run walk-off homer to center to send the Huskers to the winners' bracket. Kailey Wyckoff staked Arkansas to a 2-0 lead with a two-run shot in the second, but Nebraska drew even in the fourth on an RBI single from S. Bland and a Bella Bacon run-scoring groundout. Arkansas nudged back ahead in the eighth on an Ella McDowell single — and Hannah Coor answered instantly with a game-tying solo homer. From there it belonged to Jordy Frahm, who went the distance: all 10 innings, nine strikeouts, three runs on eight hits to improve to 21-4 before Kuszak ended it. Robyn Herron, back in the circle after a midgame exit, absorbed the loss.