Tuesday

Baseball

North Allegheny at Butler, 7 p.m.

Keystone vs. Karns City, 4 p.m., Kelly Automotive Park, 4 p.m.

Moniteau at Union, 4 p.m.

A-C Valley at Forest Area, 4:15 p.m.

Softball

Butler at North Allegheny, 7 p.m.

Shaler at Seneca Valley, 4 p.m.

Highlands at Mars, 3:45 p.m.

Cardinal Wuerl North Catholic at St. Joseph, 3:30 p.m.

Kittanning at Freeport, 3:30 p.m.

Keystone at Karns City, 4 p.m.

A-C Valley at Forest Area, 4:15 p.m.

Slippery Rock at Hickory, 4 p.m.

Corry at Grove City, 4 p.m.

Track and Field

WPIAL team semifinals

Boys-Girls Class AAA

Knoch, Mt. Lebanon at Butler, 3 p.m.

Mars, West Allegheny at North Allegheny, 3 p.m.

Boys Class AA

Freedom, South Park at Freeport, 3 p.m.

Girls Class AA

Our Lady Sacred Heart, South Park at Freeport, 3 p.m.

Boys Lacrosse

Plum at Freeport, 4 p.m.

Girls Lacrosse

North Hills at Butler, 6 p.m.

Seneca Valley at Pine-Richland, 6 p.m.

Allderdice at Knoch, 4 p.m.

Mars at Vincentian, 4 p.m.

Boys Volleyball

Pine-Richland at Butler, 6 p.m.

North Hills at Seneca Valley, 6 p.m.

Wednesday

Baseball

Pine-Richland at Butler, 7 p.m.

Seneca Valley at North Allegheny, 7 p.m.

Knoch at Highlands, 4 p.m.

Freeport at Mars, 3:45 p.m.

Cardinal Wuerl North Catholic at Leechburg, 3:30 p.m.

Oil City at Slippery Rock, 4 p.m.

Meadville at Grove City, 4 p.m.

Boys Lacrosse

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

Knoch at North Hills, 7 p.m.

Shady Side Academy at Seneca Valley, 8 p.m.

Cardinal Wuerl North Catholic at Mars, 7:15 p.m.

Track and Field

Karns City at North Clarion, 4 p.m.

Moniteau at Redbank Valley, 4 p.m.

Clarion at Union, 4:15 p.m.

Keystone at A-C Valley, 4:15 p.m.

Boys Tennis

Grove City at Tri-County Tournament, Buhl Park

College Baseball

PSAC Championships at Kelly Automotive Park