La Salle spotted Seneca Valley a 2-0 lead before reeling off 13 consecutive goals and cruising to a 15-3 win on Tuesday in the PIAA state boys' lacrosse tournament semifinals at Memorial Field in State College.
Patrick Resch started the comeback with the first of his three goals, and the balanced attack of the Explorers (21-2) got scores by eight players.
Jack Bogorowski netted four goals, Christian Cardinal and Nick Cruice scored two each, and Kevin Forster added a pair of assists against the Raiders (20-3) from District 7.
La Salle, winner of 12 straight games, will got for its third straight title against Conestoga in the state final at 2 p.m. on Saturday at HersheyPark Stadium.
Seneca Valley 2 0 0 1 - 3
La Salle 2 4 5 4 - 15
Goals: SV-Rob Fyock 1, Jake McAndrew 2. L-Jack Bogorowski 4, Christian Cardinal 2, Sean Coleman 1, Nick Cruice 2, Dan Losier 1, John Mastronardo 1, Patrick Resch 3, Shawn Warrender 1.