The girl's high school basketball playoffs opened on Monday night. In Class B district action at Marysville, the host Vikings used 28 points from Madison Valko to beat Algonac 42-21. Marysville will face Marine City on Wednesday. In the second game, St. Clair cruised to a 62-29 win over Richmond. Courtney Ingles led the way with 10 points and 11 rebounds. The Saints face Armada on Wednesday. The winning teams will meet Friday night in the district final at Marysville High School.