Following quarterfinal play only one area team remains in the state high school football playoffs.
For the fourth consecutive season, Grundy Center will play in the Class A semifinals.
The Spartans face Woodbury Central Thursday at 1 p.m. at the UNI-Dome. Both teams are unbeaten at 11-0.
Grundy Center is Class A’s 2nd-seed, while Woodbury Central is seeded 3rd.
State semifinal football games in all seven classes begin at the UNI-Dome on Wednesday and concludes on Saturday.