Wednesday

Baseball

Butler at Seneca Valley, 4 p.m.

North Allegheny at Mars, 3:45 p.m.

Karns City at A-C Valley, 4 p.m.

Moniteau at Clarion-Limestone, 4:15 p.m.

Slippery Rock at Hickory, 4 p.m.

Union at Clarion, 4:30 p.m.

Softball

Mars at Pine-Richland, 4 p.m.

Karns City at A-C Valley, 4 p.m.

Moniteau at Clarion-Limestone, 4:15 p.m.

Union at Clarion, 4:15 p.m.

Boys Lacrosse

Allderdice at Butler, 7 p.m.

Seneca Valley at Fox Chapel, 7:30 p.m.

Girls Lacrosse

Freeport at Knoch, 7 p.m.

Quaker Valley at Mars, 7:30 p.m.

Track and Field

WPIAL AAA team semifinals: Blackhawk, Franklin Regional at Butler, 3 p.m.

Thursday

Baseball

Knoch at Avonworth, 4 p.m.

Pine-Richland at North Catholic, 4 p.m.

Softball

Knoch at Butler, 4 p.m.

Union at Brockway, 4 p.m.

Track and Field

Union/A-C Valley at Moniteau, 4 p.m.

Boys Lacrosse

Seneca Valley at Fox Chapel, 6:45 p.m.

Knoch at South Fayette, 7 p.m.

Mars at Moon, 8 p.m.

Aquinas Academy at Freeport, 4 p.m.

Girls Lacrosse

Mt. Lebanon at Mars, 7:125 p.m.

North Catholic at Canon-McMillan, 7:30 p.m.

Boys Volleyball

Beaver County Christian at North Catholic, 7:15 p.m.