SAN ANTONIO - Abilene Christian chased Midwestern State starter Katie Petersen in the fifth inning as the Wildcats rolled to a 4-1 win Saturday afternoon at the St. Mary's NCAA Division II Classic at the SAISD Spring Sportsplex.

The loss extended the Mustangs losing skid to four and dropped them to 1-4 on the season.

Midwestern kicks off the Texas Woman's University Invitational next Friday agianst Central Missouri.

The Wildcats jumped out to an early 1-0 lead in the bottom of the first inning when Katie Cornelison stroked a double to right field to plate Jessica Shiery.

The duo was too much for Petersen and the Mustangs as they combined for five of ACU's eight hits as Sheiry went 2-for-3 with a pair of RBIs while Cornelison hammered out two hits and drove in Sheiry in the first.

Petersen struggled to her third-straight loss to start the 2009 campaign. The 2009 Lone Star Conference North Division Preseason Pitcher of the Year yielded four runs - all earned - on eight hits in 4 1/3 innings.

Corelison was at it again in the fourth inning as she led off with a single up the middle and came around to score when Nicole Sawyers reached on an error to give Abilene Christian 2-0 lead through four innings.

Sheirry would chase Petersen in the fifth inning when she launched a two-run blast to right-center field to give the Wildcats a 4-0 lead.

MSU's Brittney Tanner came on to pitch a hitless 1 2/3 innings in relief to cap a solid weekend for the sophomore from Burkburnett. Tanner allowed four earned runs on six hits over 15 2/3 inning while striking out 14 batters during the St. Mary's Classic.

The Mustangs scratched for a run in the sixth inning after Nicki Duff reached and advanced to second on an error by ACU right fielder Brooke Whittlesey. Brittany Dumas then delivered a pinch-hit single through the right side to account for MSU's lone run of the contest.

Abilene Christian's Jacque Gregoire allowed one unearned run on five hits for the complete game win.