Wednesday

Baseball

WPIAL 6A Playoffs

Seneca Valley vs. Hempfield, 5 p.m., at Plum

WPIAL 5A Playoffs

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

WPIAL 4A Playoffs

Knoch vs. Uniontown, 4 p.m., at Norwin

Regular Season

Keystone at Karns City, 4 p.m.

Softball

WPIAL 6A Playoffs

Seneca Valley vs. Bethel Park, 7 p.m., at North Allegheny

WPIAL 4A Playoffs

Knoch vs. Montour, 3 p.m., at North Allegheny

Freeport vs. Central Valley, 5 p.m., at Mars

Regular Season

Moniteau at Redbank Valley, 4:30 p.m.

Track and Field

WPIAL Championships at Slippery Rock University

Thursday

Softball

Slippery Rock at Jamestown, 4 p.m.

Boys Volleyball

WPIAL 3A Playoffs

Butler-Canon-McMillan winner at Seneca Valley

WPIAL 2A Playoffs

Trinity-Derry winner at North Catholic