LUBBOCK, Texas -- Paige Parker struck out a career-high 13 batters as No. 6 Oklahoma (26-5, 1-0 Big 12) opened Big 12 play with a 9-1 win Friday night at Texas Tech (16-18, 0-1 Big 12).

The Sooners picked up their eighth consecutive win in the series and have outscored the Red Raiders 64-10 in that span. The Sooners are 44-7 (.863) all-time against Texas Tech, their best winning percentage against a Big 12 opponent.

Parker was the star Friday, recording the most strikeouts by an OU pitcher since Keilani Ricketts struck out 13 in game one of the WCWS Championship Series against Tennessee on June 3, 2013. Parker allowed five hits and just one unearned run. It was the seventh time in 15 starts this year that she did not walk a batter. She retired 10 consecutive batters from the second to the fifth innings. Of those 10 outs, seven were strikeouts, including striking out the side in the fourth.

Four different OU batters had at least two hits, including Kelsey Arnold who had a career-high three hits and three runs batted in.

Shelby Pendley hit a three-run homer in the fourth and now has 72 career home runs. She moves into a tie for 11th on the NCAA all-time list.