Madison knocked off the No. 1 ranked team in class C on Thursday night, defeating Monroe St. Mary Catholic Central in five sets.
The 56-3-2 Trojans won 25-19, 25-27, 19-25, 25-23 and 15-10.
Courtney Benschoter had 26 kills while Kaiya Wall had 21 kills and Kia Rainey 22 digs.
Madison will play Allen Park Cabrini in the Class C quarterfinal at Madison on Tuesday, Nov. 15.