MondayGirls BasketballPlayoffsWPIAL Class 4AElizabeth Forward vs. Knoch, 6:30 p.m., at Mt. LebanonFreeport vs. Quaker Valley, 6:30 p.m., at North AlleghenySwimmingSlippery Rock at Farrell, 6 p.m.HockeyNorth Allegheny vs. Butler, 9:10 p.m., Frozen PondCathedral Prep vs. Seneca Valley, 7 p.m., Baierl Ice ComplexMars vs. Moon, 9 p.m., Baierl Ice ComplexFreeport vs. Montour, 7:15 p.m., Robert Morris

TuesdayBoys BasketballPlayoffs WPIAL Class 6AButler vs. Connellsville, 8 p.m., at Canon-McMillanSeneca Valley vs. Fox Chapel, 8 p.m., at North AlleghenyDistrict 9 Class 2AKarns City vs. Redbank Valley, 7 p.m., at UnionGirls BasketballPlayoffsWPIAL Class 5AMars vs. Woodland Hills, 8 p.m., at HamptonHockeyKnoch vs. Carrick, 9 p.m., Southpointe