Neshannock scored five runs in the first inning of its WPIAL Class A quarterfinal game Tuesday against Vincentian.
That was more than enough for pitcher Madison Shaffer, who was perfect.
Shaffer tossed a perfect game, striking out 10 hitters, as the defending WPIAL champion Lancers (14-2), the No. 1 seed, beat the No. 8 Royals (11-4), 7-0, at South Side Beaver.
Offensively, Neshannock got two hits and two RBIs apiece from Kaela Zingaro and Madison Altmyer.
Other Class A quarterfinals
■ Jefferson-Morgan 9, Bishop Canevin 1: Madison Ludrosky struck out 13 and also went 5 for 5 at the plate as the No. 3 Rockets (16-2) crushed the No. 11 Crusaders (9-5) at California University. Morgan Simkovic had three hits, one of which was a home run, and knocked in four runs.
■ South Side Beaver 10, Carmichaels 3: Toni Yacoviello and Connor McGaffic each hit a home run and combined for eight RBIs to lift the No. 7 Rams (15-3) to a victory against the No. 2 Mighty Mikes (14-4) at California University.
■ Burgettstown 8, Shenango 2: Caley Ritts went 2 for 3 and scored three times to help the fifth-seeded Rams (16-4) take down the No. 4 Wildcats (14-4) at South Side Beaver.
Class AAA quarterfinals
■ Greensburg Salem 2, West Allegheny 1: Lauren McLaughlin hit a walk-off single in the bottom of the seventh inning as the No. 1 Golden Lions (15-1) survived against the No. 9 Indians (11-6) at Baldwin. Karly Mellinger, who had Greensburg Salem's only RBI in Monday's win against Central Valley, drove in a run to tie the score in the sixth
■ Mars 1, West Mifflin 0: Niki Schlegel pitched a four-hit shutout to help the No. 11 Planets (11-4) down the No. 3 Titans (17-3) at Baldwin for their second upset win in as many days. West Mifflin's Paige Flore allowed just two hits, taking a no-hitter into the sixth.
■ Elizabeth Forward 5, South Fayette 0: Courtney Hrabosky had a two-run double in a five-run seventh to give the No. 7 Warrors (14-6) a win against the No. 2 Lions (14-2) at Baldwin.
■ Thomas Jefferson 3, Trinity 1: Lacie Lautner didn't allow an earned run and struck out 10 in a complete-game victory for the No. 13 Jaguars (13-6) against the Hillers (16-3) at California University.