13 March 2026, 11am UTC
The Chicago Marathon is estimated to have generated nearly 756 million USD (659m EUR) for the city’s economy in 2025.
Organisers said: “Alongside our largest finisher field in event history, the 2025 Bank of America Chicago Marathon generated a record $755.9 million for the Chicago Metropolitan Area economy, a 7.5 percent increase from 2024.
“More than 75 percent of our 54,383 finishers travelled in from outside Illinois, bringing their friends and family and spending multiple days exploring our city. We are so proud to show off our home and can’t wait to welcome more of you this October.”