The Bank of America Chicago Marathon has made significant contributions to the city's economy, with a notable increase in its financial impact. A study by Jones & Associates Economics highlighted that the 2023 race brought $547 million to Chicago's economy, marking a 42% rise from $386 million in 2022. Over seven years, the marathon has cumulatively contributed over $2.3 billion to the Chicagoland region.

The Chicago Marathon, which started in 1905 and was relaunched in 1977 after being discontinued in the 1920s, presents other interesting statistics beyond economic figures.

"Runners in 1977 Marathon," "Runners in 2023 Marathon," and "Estimated number of runners in 2024 Marathon" showcase its growth over the years. Weather conditions have also varied significantly; for example, "Temperature on day of 1993 Marathon" and "Temperature on day of 2007 Marathon (cancelled during race because of heat)" are notable mentions.

The event is recognized for its record-setting performances: "Number of world records set at Bank of America Chicago Marathon" and "Number of national records set at Bank of America Chicago Marathon." It also attracts international participants, with "Percent of 2023 runners who came from another country" and "Number of countries represented by runners."

Charitable efforts are a significant aspect of the marathon, as indicated by "Millions of dollars raised for charity by 2002 Marathon" and "Millions of dollars raised for charity by 2023 Marathon," along with details about its "Number of charity partners."

Spectatorship remains strong, highlighted by the mention: "Number of race spectators."