Sooner pitcher Kami Keiter was outstanding striking out five and giving up just three hits and one run in six innings, but Nebraska starter Ashley Debuhr was better.
"We were completely flat offensively against a pitcher that threw an outstanding game in her second straight game of the day," said OU head coach Patty Gasso. "She was fresh and just owned us tonight."
Keiter had a shutout going through three innings, but Nebraska catcher Jamie Waldecker's solo home run with two outs in the top of the fourth would be all the Cornhuskers would need.
"It was a very hard game to watch," Gasso said. "We gave a tremendous defensvie performance – the best we've had all season. Kami threw well enough to win, but it was one big hit that made a difference in the game.
"It's a discouraging way to start. However, the one thing I know about this team is that they are going to fight and not give up. Usually, we like to do things the hard way and that's what we're going to have to do."
With the loss, the Sooners drop to the losers braceket where they will play the Texas-Kansas loser at 2 p.m. Thursday on Field 4 at ASA Hall of Fame Stadium in Oklahoma City.
OU-Nebraska Box Score