Chicago Marathon

Flat, fast course through 29 neighborhoods, starting/finishing in Grant Park with iconic city views.

Race Details

Race Distance

Marathon

42.195km

26.2ml

Race Official Name

Bank of America Chicago Marathon

Race Month

October

Race Date 2025

Sunday, October 12, 2025

Race Type

Road

About the Chicago Marathon

The Chicago Marathon is a thrilling race through the heart of the Windy City, offering a flat and fast course that winds through 29 diverse neighborhoods. Starting and finishing in Grant Park, runners experience the vibrant energy of cheering crowds and iconic cityscapes, including the towering skyline and the serene Lake Michigan shoreline. The crisp autumn air invigorates participants as they navigate bustling streets, historic landmarks, and lush parks, creating an unforgettable journey filled with camaraderie and personal triumph.

Course & Elevation

74

74

74

Net Elevation Gain (m)

1

181

181

181

Rolling Elevation Change (m)

147

147

147

Weather & Conditions

Average Temperature (°C)

14.5

70

Air Quality Index

40

Wind (km/h)

11

Participants

Average Number of Participants

45,000

Course Map

The map shown is based on data from the past edition of this event. The actual route for the upcoming edition may be different.

Race Location

Chicago,

USA,

North America

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