The 2026 Chicago Marathon expects 1.7 million spectators, with most watching from the roadside. Grant Park is closed until 9:30 a.m., so viewing is along the course. The Red Line offers convenient access to multiple sections.

State Street construction changes the course slightly, with runners now turning onto Dearborn Street. The rest of the route remains the same. Marathon Handbook provides a mile-by-mile guide for spectators. Read more gear coverage.

Spectators should plan their viewing spots based on the marathon app's live tracking. The professional races start at 7:30 a.m., with elite men aiming for the course record and elite women around 2:15. Related: Insider Tips for Running the 2026 Chicago Marathon.

This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.