Monday

Baseball

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

Seneca Valley at Central Catholic, 3:45 p.m.

Indiana at Knoch, 5:30 p.m.

Woodland Hills at Mars, 3:45 p.m.

Freeport at Burrell, 4 p.m.

North Catholic at Highlands, 7 p.m.

Grove City at Slippery Rock, 4 p.m.

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

Softball

Hempfield at Butler, 4 p.m.

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

Highlands at Knoch, 4 p.m,.

Oakland Catholic at Mars, 3:45 p.m.

McKeesport at Freeport, 4:15 p.m.

Forest at Karns City, 6 p.m.

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

Boys Volleyball

Mars at North Catholic, 7:30 p.m.

Boys Lacrosse

Meadville at Butler, 7 p.m.

Girls Lacrosse

Knoch at South Fayette, 7 p.m.

Seton LaSalle at Mars, 7:30 p.m.

North Catholic at Quaker Valley, 7 p.m.

Boys Tennis

Butler at Kiski Area, 4 p.m.

Central Valley at Seneca Valley, 4 p.m.

Valley at Mars, 3:30 p.m.

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

Tuesday

Baseball

Butler at North Allegheny, 7 p.m.

Central Catholic at Seneca Valley, 4 p.m.

Knoch at Indiana, 4 p.m.

Mars at Woodland Hills, 3:45 p.m.

Burrell at Freeport, 4:15 p.m.

Highlands at North Catholic, 4 p.m.

Clarion at Moniteau, 5:30 p.m.

Clarion-Limestone at Union, 4 p.m.

Softball

Clarion at Moniteau, 4 p.m.

Slippery Rock at Grove City, 4 p.m.

Clarion-Limestone at Union, 4 p.m.

Boys Lacrosse

Mars at Plum, 7:30 p.m.

Freeport at Knoch, 4 p.m.

Shaler at North Catholic, 4:30 p.m.

Girls Lacrosse

Butler at Sewickley Academy, 4:30 p.m.

Seneca Valley at Moon, 6:30 p.m.

Pine-Richland at Freeport, 5 p.m.

Track and Field

Butler at Seneca Valley, 4 p.m.

Mars at Hampton, 4 p.m.

Boys Volleyball

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

Bethel Park at Seneca Valley, 7:30 p.m.

Plum at Mars, 7:30 p.m.

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

Boys Tennis

WPIAL doubles championships at Fox Chapel