Baseball Karns City at Union, 4 p.m. Redbank Valley at A-C Valley, 4:15 p.m. Softball North Allegheny at Butler, 4 p.m. Seneca Valley at Shaler, 4 p.m. Indiana at Knoch, 4 p.m. Mars at Highlands, 4:30 p.m. Freeport at Apollo-Ridge, 3:45 p.m. Redbank Valley at A-C Valley, 4:15 p.m. Hickory at Slippery Rock, 4:15 p.m. Grove City at Corry, 4 p.m. Track and Field Slippery Rock at Greenville, 3:30 p.m. Sharon at Grove City, 4 p.m. WPIAL Team Playoffs Class AAA Boys New Castle, Knoch, Chartiers Valley at Seneca Valley, 3 p.m. Mars, Moon, Central Catholic at North Allegheny, 3 p.m. Class AA Boys Riverside, Southmoreland at Freeport, 3 p.m. Class AAA Girls Knoch, Chartiers Valley, West Allegheny at Seneca Valley, 3 p.m. Mars, Mt. Lebanon, Moon, Peters Township at North Allegheny (host only) Butler, Baldwin, Franklin Regional at Norwin, 3 p.m. Class AA Girls Southmoreland, Mohawk, California at Freeport, 3 p.m. Boys Volleyball Butler at Pine-Richland, 6 p.m. Seneca Valley at North Hills, 6 p.m. Girls Lacrosse Butler at Mars, 7:15 p.m. Freeport at Knoch, 6:30 p.m. Boys Tennis Butler at Blackhawk, 3:30 p.m. Baldwin at Seneca Valley, 3:30 p.m. Mars at Sewickley Academy, 4:15 p.m. WednesdayBaseballButler at Shaler, 4 p.m.Central Catholic at Seneca Valley, 4 p.m.Mars vs. Knoch, 4 p.m., Kelly Automotive ParkDeer Lakes at Freeport, 3:45 p.m.Slippery Rock at Oil City, 4:15 p.m.Grove City at Meadville, 4 p.m.Track and FieldUnion, Keystone at Karns City (girls), 4 p.m.Karns City, Keystone at Union (boys), 3:45 p.m.A-C Valley, Cranberry at North Clarion (girls), 4 p.m.A-C Valley, North Clarion at Cranberry (boys), 4 p.m.Boys LacrosseFox Chapel at Butler, 6 p.m.Quaker Valley at Knoch, 7 p.m.Mars at Freeport, 7:30 p.m.