We have reached the cusp of Heinz Field. In 6A, 4A, 3A, and 1A tonight’s games are the semifinals and the winners will go on to play at Heinz Field in the WPIAL Championship next Saturday. In 5A and 2A, where 16 teams made the playoffs, this week is the quarterfinals and the semis will take place next week at neutral sites before their respective Championship Games on November 23 at Norwin Stadium. In 5A the Allegheny Eight conference nearly had a clean sweep but McKeesport came from behind to beat Baldwin, denying the Highlanders their first playoff win since 1991.