FridayBoys BasketballPlayoffsWPIAL Class 5AMars vs. Shaler, 8 p.m., at North AlleghenyDistrict 9 Class 2AKarns City vs. Coudersport, 6 p.m., at Saint MarysGirls BasketballPlayoffsWPIAL Class 6ASeneca Valley vs. Bethel Park, 6:30 p.m., at North AlleghenyCollege BaseballSlippery Rock vs. Saint Rose, Dinwiddie, Va.

SaturdayBoys BasketballPlayoffsWPIAL Class 6AButler vs. Upper St. Clair, 1:30 p.m., at Canon-McMillanWPIAL Class 4AKnoch vs. Quaker Valley, noon at North HillsGirls BasketballPlayoffsWPIAL Class 5AMars vs. Oakland Catholic, 1:30 p.m., at North HillsDistrict 10 Class 5ASlippery Rock vs. Corry, 2:30 p.m., at FarrellWrestlingWPIAL individual section championshipsSwimmingWPIAL Diving Championships at North Allegheny, 10 a.m.College BasketballSlippery Rock (women) at Pitt-Johnstown, 1 p.m.Slippery Rock at Pitt-Johnstown, 3 p.m.College BaseballSlippery Rock vs. East Stroudsburg, 11 a.m., Colonial Heights, Va.