SAN ANTONIO -- Oklahoma State defender Carson Michalowski headed in a corner kick from Colleen Dougherty in the 53rd minute Sunday and the Cowgirls defeated Texas A&M 1-0 to win the Big 12 Conference women`s soccer championship.

The fifth-seeded Cowgirls (15-7-0, 8-5-0) earned the automatic bid into the NCAA tournament, which starts Friday.

The second-seeded Aggies (14-6-2, 8-3-2) will learn their fate today when the selections are announced at 5 p.m.

It`s the first time the Cowgirls have won the Big 12 tournament since 2003.

Colorado, seeded third, lost in the first round on Wednesday, falling 1-0 in double overtime to No. 6 Texas.

Big 12 soccer

At San Antonio, Texas

Wednesday

Texas A&M 2, Baylor 0

Missouri 3, Kansas 2, OT

Texas 1, Colorado 0, 2OT

Oklahoma State 3, Nebraska 0

Friday

Texas A&M 5, Texas 1

Oklahoma State 3, Missouri 2

Sunday

Oklahoma State 1, Texas A&M 0