Following are WPIAL basketball playoff games involving Butler County teams.

Boys Class AAAA

Seneca Valley vs. Franklin Regional, 1:30 p.m. Saturday at Plum H.S.

Class AAA

Knoch vs. Blackhawk, Tuesday at a site and time to be determined

Mars vs. Steel Valley, Tuesday at a site and time to be determined

Class AA

Summit Academy vs. Washington/Burrell winner, Wednesday at a site and time to be determined

Girls Class AAAA

Seneca Valley vs. Bethel Park, Tuesday at a site and time to be determined

Class AAA

Mars vs. Central Valley, Wednesday at a site and time to be determined

Freeport vs. West Mifflin, 12 p.m. Saturday at Plum H.S.