Maryville Christian School
Freeburg High School
Greenville High School
Mascoutah High School
Althoff Catholic High School
Granite City High School
Waterloo High School
Columbia High School
East Alton-Wood River High School
Civic Memorial High School
Red Bud High School
River Valley Christian School
St. Anthony High School
2026 IHSA Baseball Semifinal Multi-team Event
Father McGivney Catholic School
Metro-East Lutheran High School
Pinckneyville High School
Mt. Carmel High School - Mt. Carmel
Gibault Catholic High School
Bunker Hill High School
