Monday

Baseball

WPIAL 6A Playoffs

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

Mt. Lebanon vs. Seneca Valley, 4 p.m., at West Mifflin

WPIAL Class 4A Playoffs

North Catholic vs. Knoch, 6:30 p.m., at North Allegheny

Softball

WPIAL 4A Playoffs

Beaver vs. Freeport, 3 p.m., at Mars

District 9 Playoffs

Class 2A

Moniteau at Curwensville, 4 p.m.

Boys Volleyball

WPIAL 3A Playoffs

Seneca Valley vs. Shaler, 7:45 p.m., at Fox Chapel

WPIAL 2A Playoffs

North Catholic vs. Montour, 6 p.m., at Moon

Boys Lacrosse

WPIAL 2A Playoffs

Mars vs. South Fayette, 7:45 p.m., at North Hills

Girls Lacrosse

WPIAL 2A Playoffs

Mars vs. Hampton, 6 p.m., at North Hills

Tuesday

Baseball

District 9 Playoffs

Class 2A

Moniteau vs. Brookville, 2 p.m., at Punxsutawney

Karns City vs. Kane, 5 p.m., at Punxsutawney

Class 1A

Union/A-C Valley at Clarion-Limestone, 4:30 p.m.

District 10 Playoffs

Class 4A

Slippery Rock vs. Fort Leboeuf, 6:30 p.m., at Slippery Rock University