2025 Chicago Marathon: Full Race Day Start Times and Schedule

When does the 2025 Chicago Marathon start? Here's the complete race day start-times and schedule.

The 2025 Bank of America Chicago Marathon takes place on Sunday, October 12, 2025. Race morning begins early, with Grant Park opening to participants at 5:30 a.m.. Gear check opens at the same time, and runners can start making their way into the start corrals.

When is the 2025 Chicago Marathon date?

The Chicago Marathon will be held on Sunday, Oct. 12. 2025

2025 Chicago Marathon: Full Race Day Start Times and Schedule

Pre-Race

5:30 a.m. - Grant Park opens to participants

5:30 a.m. - Gear check opens

5:30 a.m. - Start corrals open

7:20 a.m. - Wave 1 start corrals close

Wheelchair & Para Athletes

7:20 a.m.: Men’s Professional Wheelchair Start.

7:21 a.m.: Women’s Professional Wheelchair Start.

7:23 a.m.: Handcycle Start.

Professional Races

7:30 a.m.: Men’s and Women’s Professional Start.

7:32 a.m.: High Performance Program Start.

Wave Starts

7:20 a.m. - Wave 1 start corrals close

7:35 a.m. - Wave 1 Start

7:45 a.m. - Wave 2 start corrals close

8 a.m. - Wave 2 Start

8:10 a.m. - Wave 3 start corrals close

8:35 a.m. - Wave 3 Start

Post-Race

9:30 a.m.: Grant Park opens to spectators; 27th Mile Post-Race Party begins.

4:00 p.m.: Gear check closes; 27th Mile Post-Race Party ends.

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