For the first time in school history, the West Allegheny boys soccer team will play for a WPIAL championship.
Collin Wurst beat the keeper far post with 13 minutes remaining to help No. 1 West Allegheny (16-0-3) beat fourth-seeded Shady Side Academy (13-4), 1-0, in a WPIAL Class AA semifinal Monday night at Moon.
"We wore them down as the game wen on," West Allegheny coach Kevin Amos said. "We were strong in back, and had chances to score, but Shady Side Academy was tough in the back, too."
Spencer Wolfe had three saves in the shutout win, West Allegheny's 14th shutout of the season.
Other Class AA
■ South Fayette 1, South Park 0: Dan Pruss scored off a Jake Thomas corner kick in the 65th minute to give the Lions (16-2-2) a WPIAL semifinal win against the Eagles (18-2) at North Allegheny.
Last season, South Fayette beat South Park, 1-0, in a shootout.
Alex Gedrys had five saves in the shutout, which was the Lions' 18th of the season. South Fayette will play Section 5 foe West Allegheny in the championship. The two teams tied, 0-0 and 1-0,
■ Upper St. Clair 6, Bethel Park 1: Troye Kiernan and Joel Hart each scored twice to help the top-ranked Panthers (18-0-1) rout the No. 5 Black Hawks (14-5-1) at Chartiers Valley.
The Panthers, the 2012 PIAA champions, advance to their third consecutive WPIAL title game.
They are 1-1 in the previous two.
■ Peters Township 4, Canon-McMillan 0: Nicco Mastrangelo scored a hat trick to lift No. 7 Peters Township (15-3-2) to a 4-0 victory against the No. 11 Big Macs (15-3-2) at Chartiers Valley. It was a rematch of last season's semifinal, which the Big Macs won, 2-1.
Peters Township will play Upper St. Clair in the final. The Panthers swept the season series, 4-3 and 6-1.
■ Beaver County Christian 4, Seton-LaSalle 2: Abel Carleton, Scott Carson, Hamin Cho and Daniel Townsend each scored for the sixth-seeded Eagles (14-4) against the No. 2 Rebels (15-3-1) at Hampton.
Beaver County Christian, which didn't make the playoffs the past two seasons, advances to its first WPIAL final.
■ Sewickley Academy 6, Serra Catholic 0: J.P. Bowell and Steven Munn both scored twice to lead No. 1 Sewickley Academy (15-3) against the fourth-seeded Eagles (13-4-1) at West Allegheny.
"We were focused and moved the ball well on the ground," said Panthers coach Jim Boone.
"This game luck was on our side. The ball bounced our way tonight."
The Panthers will move on to face Beaver County Christian, who they beat, 6-0 and 2-1, in their two Section 5 meetings this season.