Monday

Baseball

Butler at Gateway, 4 p.m.

Derry Area at Freeport, 4:15 p.m.

Softball

Butler at Pine-Richland, 4 p.m.

Baldwin at Seneca Valley, 6 p.m.

Knoch at Armstrong, 3:45 p.m.

Hopewell at Mars, 3:45 p.m.

A-C Valley at Rocky Grove, 4 p.m.

Boys Lacrosse

North Catholic at Butler, 7 p.m.

Mars at Fox Chapel, 5:30 p.m.

Girls Lacrosse

Butler at Fairview, 7:30 p.m.

Seneca Valley at Hampton, 7 p.m.

Shaler at Knoch, 6 p.m.

Boys Tennis

Butler at North Hills, 3:30 p.m.

Seneca Valley at Pine-Richland, 3:30 p.m.

Mars at North Allegheny, 3:30 p.m.

Hampton at Knoch, 3:30 p.m.

Burrell at North Catholic, 3:30 p.m.

Tuesday

Baseball

Mars at Knoch, 5:30 p.m., Pullman Park

Freeport at Derry Area, 4 p.m.

Franklin at Moniteau, 3:30 p.m., Pullman Park

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

Softball

Freeport at Karns City, 5 p.m.

Ambridge at North Catholic, 4 p.m.

Oil City at Slippery Rock, 4 p.m.

Track and Field

Fox Chapel at Butler, 3:45 p.m.

Boys Lacrosse

Canon-McMillan at Seneca Valley, 7:30 p.m.

Hampton at Knoch, 7:15 p.m.

Girls Lacrosse

Knoch at Blackhawk, 7 p.m.

Mars at Aquinas Academy, 3:45 p.m.

Trinity at North Catholic, 4 p.m.

Boys Volleyball

Butler at Pine-Richland, 7:30 p.m.

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

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

Boys Tennis

WPIAL section singles

College Baseball

Mansfield at Slippery Rock, 1 p.m.

College Softball

Mercyhurst at Slippery Rock, 2 p.m.

Wednesday

Baseball

Mt. Lebanon at Seneca Valley, 4 p.m.

Riverside at Knoch, 5:30 p.m., Pullman Park

Softball

Norwin at Butler, 4 p.m.

Mars at Knoch, 4 p.m.

Armstrong at Freeport, 4:15 p.m.

Track and Field

Freeport, Valley at Knoch, 3:30 p.m.

Karns City at Keystone, 4 p.m.

Union/A-C Valley at Redbank Valley, 4:15 p.m.

Boys Lacrosse

Butler at Hempfield, 6:30 p.m.

Mars at North Catholic, 4 p.m.

Freeport at Indiana, 7 p.m.

Girls Lacrosse

Butler at Seneca Valley, 7:30 p.m.

Freeport at North Hills, 6 p.m.

Boys Tennis

WPIAL section singles

Thursday

Baseball

Mars at Butler, 3:30 p.m., Pullman Park

Redbank Valley at Karns City, 7:30 p.m., Pullman Park

Softball

Knoch at Kiski Area, 4 p.m.

Indiana at Freeport, 4:15 p.m.

Redbank Valley at Karns City, 6 p.m.

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

Slippery Rock at Corry, 4 p.m.

Track and Field

Seneca Valley at Pine-Richland, 3:30 p.m.

Kiski Area at Mars, 3:30 p.m.

Boys Lacrosse

Seneca Valley at Baldwin, 7 p.m.

Girls Lacrosse

Seneca Valley at Allderdice, 3:30 p.m.

Knoch at Mars, 6 p.m.

North Catholic at Seton LaSalle, 6 p.m.

Boys Volleyball

North Hills at Butler, 7:30 p.m.

Peters Township at Seneca Valley, 7:30 p.m.

Plum at Mars, 7:15 p.m.

North Catholic at Ambridge, 7:15 p.m.

Boys Tennis

North Allegheny at Butler, 3:30 p.m.

North Hills at Seneca Valley, 4 p.m.

Moon at Mars, 3:30 p.m.

Knoch at Burrell, 3:30 p.m.

North Catholic at Springdale, 3:30 p.m.

Friday

Baseball

Seneca Valley at Plum, 4 p.m.

Knoch at Shady Side Academy, 3:30 p.m.

Pine-Richland at North Catholic, 3:30 p.m.

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

Mercyhurst Prep at Slippery Rock, 4 p.m.

Softball

Butler at North Allegheny, 6 p.m.

Seneca Valley at Pine-Richland, 4 p.m.

Franklin Regional at Mars, 3:45 p.m.

Union/A-C Valley at Clarion-Limestone, 4:15 p.m.

Boys Lacrosse

Trinity at Butler, 7 p.m.

Upper St. Clair at Mars, 7 p.m.

Allderdice at Freeport, 4 p.m.

Girls Lacrosse

Butler at Hempfield, 7:30 p.m.

Boys Tennis

Riverside at Seneca Valley, 4 p.m.

North Hills at Knoch, 3:30 p.m.

College Baseball

Slippery Rock at Indiana (Pa.), 1 p.m.

Saturday

Softball

Slippery Rock at Sharpsville, 11 a.m.

Track and Field

Butler County Classic at Freeport, 9 a.m.

Boys Lacrosse

Trinity at Mars, 11:30 a.m.

Boys Volleyball

Butler at Peters Township Tournament, 8 a.m.

Mars at Seneca Valley Tournament, 8 a.m.

College Baseball

Indiana (Pa.) at Slippery Rock, 1 p.m.

College Softball

Pitt-Johnstown at Slippery Rock, 1 p.m.

Allegany (Md.) at Butler County Community College, 1 p.m.