Chicago Marathon 2024 Dates Start Time. The chicago marathon will begin bright and early at grant park on october 13, with gates opening to runners at 5:30 a.m. Wave 1 (red) start corrals close 7:20 a.m.:


Chicago Marathon 2024 Dates Start Time

When does the chicago marathon start? This comprehensive guide has everything you need to know to make your race day a success.

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