Monday

Boys Soccer

North Hills at Butler, 8 p.m.

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

Knoch at Mars, 7 p.m.

Freeport at Kiski Area, 7 p.m.

Ellwood City at North Catholic, 4 p.m.

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

Slippery Rock at Conneaut, 7:30 p.m.

Girls Soccer

North Catholic at Pine-Richland, 7:30 p.m.

Karns City at Redbank Valley, 4 p.m.

Girls Volleyball

Knoch at Deer Lakes, 7:15 p.m.

North Catholic at Bishop Canevin, 7:30 p.m.

Oil City at Union, 7:30 p.m.

Girls Tennis

Hampton at Butler, 3:30 p.m.

Riverview at Knoch, 3:30 p.m.

Mars at Seneca Valley, 4 p.m.

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

Golf

WPIAL semifinals

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

Burrell at Freeport, 3:15 p.m.

Slippery Rock at Franklin Invitational, 10 a.m.

Girls Golf

Oakland Catholic at Seneca Valley, 3 p.m.

Peters Township at Mars, 3:15 p.m.

Tuesday

Boys Soccer

Karns City at Clarion-Limestone

Girls Soccer

Butler at Kiski Area, 7 p.m.

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

Armstrong at Knoch, 7:30 p.m.

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

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

Karns City at Clarion, 6 p.m.

Slippery Rock at Conneaut, 7:30 p.m.

Girls Volleyball

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

Knoch at Highlands, 7;15 p.m.

Hampton at Mars, 7:15 p.m.

Freeport at Armstrong, 7:15 p.m.

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

Moniteau at A-C Valley, 7 p.m.

Forest Area at Union, 7:30 p.m.

Wilmington at Slippery Rock, 7:15 p.m.

Girls Golf

Mars at Seneca Valley, 3 p.m.

KSAC Mega March at Foxburg

Golf

WPIAL semifimals

Cross Country

Butler at Hampton, 3:30 p.m.

North Allegheny, North Hills at Seneca Valley, 4 p.m.

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

Mars, Pine-Richland at Shaler, 3:30 p.m.

Karns City at Union, 4:30 p.m.

Moniteau at Keystone, 4:30 p.m.

Girls Tennis

Pine-Richland at Knoch, 3:30 p.m.