Monday

Boys Lacrosse

WPIAL 3A Playoffs

Central Catholic at Butler, 7 p.m.

Seneca Valley at Bethel Park, 7 p.m.

Baseball

Slippery Rock at Greenville, 4 p.m.

Softball

Union at Clarion-Limestone, 4 p.m.

Tuesday

Baseball

WPIAL 5A Playoffs

Mars vs. Chartiers Valley, 4 p.m., at North Allegheny

Regular Season

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

Moniteau at Redbank Valley, 4:15 p.m.

Softball

WPIAL 3A Playoffs

North Catholic vs. Mount Pleasant, 5 p.m., at Fox Chapel

Regular Season

Moniteau at Clarion, 4:15 p.m.

Slippery Rock at Sharon, 4 p.m.

Girls Lacrosse

WPIAL 3A Playoffs

Seneca Valley at Bethel Park, 7 p.m.

Boys Volleyball

WPIAL 3A Playoffs

Butler vs. Canon-McMillan, 6 p.m., at Upper St. Clair

WPIAL 2A Playoffs

Mars vs. Seton LaSalle, 6 p.m., at Gateway