FridayBoys BasketballWPIAL Class AAA PlayoffsMars vs. Steel Valley, 8 p.m., at North HillsWPIAL Class A PlayoffsCardinal Wuerl North Catholic vs. Clairton, 8 p.m., Chartiers ValleyDistrict 10 Class AAA PlayoffsGrove City vs. Strong Vincent, 6 p.m., Villa Prep Event CenterDistrict 9 Class A PlayoffsUnion vs. Clarion-Limestone, 6 p.m., Clarion High SchoolGirls BasketballDistrict 9 Class A PlayoffsUnion vs. North Clarion, 7:30 p.m.HockeySeneca Valley at Bethel Park, 7 p.m.

SaturdayGirls BasketballDistrict 10 Class AAA PlayoffsGirard vs. Slippery Rock, 4 p.m., at MeadvilleGrove City vs. Mercyhurst Prep, 2:30 p.m., at FairviewSwimmingSeneca Valley at North Allegheny, 4 p.m.College BasketballGannon at Slippery Rock (women), 5 p.m.Gannon at Slippery Rock, 7 p.m.