The 84th All Chicago Open will be on Saturday, September 30, 2023.

Doors open at 6:30pm to Fellowship, meet Committees and purchase Literature!

Auditorium opens, 7:30pm and Meeting starts at 8 pm.

New Location!

Harris Theatre, 205 E. Randolph St. Chicago, IL 60601

Link to Millennium Parking Garage for discounted parking:

See FLYER for additional information.

Contact [email protected] with any questions or if you would like to be of service. 


Dear Member,

We apologize for any inconvenience this might cause. The ACO “save your seat” phase has ended. You are appreciated. We have reached capacity for this venue and will not be able to accommodate you at this time. Please keep your eyes and ears open for our upcoming event announcement. We apologize again if missing this particular event causes any strife. Due to Chicago Fire Department’s ordinance, we cannot overbook this facility. We hope to see you next year.


ACO Committee