ThursdayBaseballWPIAL Class AAA PlayoffsKnoch vs. Montour, 2 p.m., at Fox ChapelMars vs. Hiopewell, 4:30 p.m., at Burkett ComplexTrack 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

FridayGirls LacrosseWPIAL Div. 2 PlayoffsButler at Blackhawk, 7 p.m.Track and FieldDistrict 9 meet at BrookvilleSaturdayTrack and FieldDistrict 10 Championships at Spire Institute, 10 a.m.Legion BaseballCenter Township at Slippery RockMars at SaxonburgButler City at CranberryKiski at Meridian, DHValley at West Sunbury, DH