WednesdayBaseballWPIAL Class AAA PlayoffsKnoch vs. Montour, 4 p.m., North AlleghenyMars vs. Hopewell, 4:30 p.m., Burkett ComplexSoftballWPIAL Class AAA PlayoffsKnoch vs. Montour, 2 p.m., at Seneca ValleyMars vs. Beaver, 3 p.m., at North AlleghenyWPIAL Class AA PlayoffsFreeport vs. McGuffey, 7 p.m., at LatrobeBoys LacrosseWPIAL Div. 2 PlayoffsLatrobe/Gateway winner at Mars, 7:30 p.m.Girls LacrosseWPIAL Div. 2 PlayoffsHempfield at Mars, 6 p.m.

ThursdayTrack and FieldWPIAL Championships, 12:15 p.m., at BaldwinSoftballSlippery Rock at Hickory, 4 p.m.Corry at Grove City, 4 p.m.Legion BaseballSaxonburg at CranberryEast Butler at Slippery RockKiski at Center TownshipButler City at MarsValley at Meridian