Boosted by a five-run explosion in the bottom of the sixth inning, the Sooners completed the series sweep against Kansas with a 7-0 shutout win Sunday at Marita Hynes Field.

The Sooners won the first game of the series 2-0 on Saturday off a pair of RBI hits in the third inning by junior outfielder Haley Nix and sophomore utility player Katie Norris.

OU finished Big 12 regular season action this weekend, finishing 13-3 in conference action, while the Jayhawks fell to 1-15. The two wins helped to improve the Sooners’ placement in the Big 12 Tournament on May 14-16.

“We talked about missed opportunities,” head coach Patty Gasso said. “It’s something we have to work on as we’re going into the postseason. It was good to see us taking advantage of that today.”

After going scoreless in the first two innings during Saturday’s game, the Sooners returned in the third inning with a lead-off walk by senior second baseman Amber Flores. Freshman first baseman Jessica Shults then singled down the right field line to advance Flores to third base.

With runners on first and third, sophomore pinch runner Evan Sallis replaced Shults on base and stole second base. Following a strikeout by senior catcher Lindsey Vandever to record the first out of the inning, Nix reached first base on an RBI fielder’s choice that scored Flores and moved Sallis to third.

Freshman pitcher Keilani Ricketts walked to load the bases. Norris then stepped up to the plate with a 3-2 pitch count and delivered a ground out to first base to score Sallis and the Sooners’ second run of the game. The two runs in the third inning would be the only runs for the game.

Ricketts received the starting nod for Saturday’s game and finished the day throwing her 21st complete game and 10th shutout for the season. Ricketts allowed just two hits with nine strikeouts.

Sunday’s game got off to a quick start with two runs from four consecutive singles from the Sooners' bats. After drawing a walk, Flores advanced to second from a single to center field by Shults. Flores then scored off a single to right field by Vandever. Shults would score on Nix’s single up the middle.

The Sooners put the game away in five innings later on a two-out rally that started again with singles. Junior third baseman Dani Dobbs and sophomore infielder Karolyne Long reached base on back to back singles.

Both runners scored on a double by Haley Anderson to put the Sooners up by five runs. Anderson would also score off a single by Flores.

A double by Vandever to score Flores resulted in a pitching change for the Jayhawks, but a walk by Nix would load the bases, and a walk by junior pinch hitter Wendy Trott scored Shults to extend the Sooners lead to 7-0. The Sooners finished the game scoring seven runs off 12 hits.

The Sooners also saw a strong performance by starting freshman pitcher Michelle Gascoigne, who finished her fourth shutout on the season, allowing just two hits while striking out 10.

“Michelle was the one we were going with today,” Gasso said. “We didn’t need any relief for her.”

OU will finish up the regular season at 6 p.m. Thursday against North Texas in Denton.