99.76 PR score indicates a nearly flat course with minimal elevation change.
14% of finishers manage to qualify for Boston, highlighting a competitive yet achievable BQ rate.
A massive field size of 52,017 finishers provides an energetic and festive running environment.
The race takes place in early October, typically enjoying mild fall weather in Chicago.
With a PR score of 99.76, this course is one of the flattest in the country, making it an enticing option for both casual runners and those looking to set personal records. The Chicago Marathon draws a huge crowd, with over 52,000 finishers, creating an electric atmosphere as you navigate through the city's iconic streets. Expect a well-organized event, with frequent hydration stations and enthusiastic spectators lining the route, providing motivation throughout the race.
Aim to find a steady rhythm early on, utilizing the flat terrain to conserve energy. Stay aware of your pace, especially in the first half where you might be tempted to go out too fast due to the crowd and excitement.
No elevation data was found in the course profile file.
Historical average based on 3-year data for this race date
Temp
69.6°F / 50.1°F
Conditions
Rainy
Precipitation
0.17 in
Wind
12.2 mph
Historical averages · Source: Open-Meteo · Actual conditions will vary
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