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Chicago Marathon runner in Project Purple singlet high-fiving Project Purple founder and CEO Dino Verrelli running over a bridge.

2025 Bank of America Chicago Marathon

October 12, 2025 | Complete one of the seven world marathon majors in the Windy City with the Project Purple team! 2024 saw our largest team in Chicago of 150 runners and in 2025 we will once again have our largest team, come be a part of history.

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