When Is The 2025 Chicago Marathon

When Is The 2025 Chicago Marathon. Here’s a rundown of the marathon—including registration information, facts and figures about field size, past winners, and weather—plus a review of the 2023 race. View the leaderboard and results, including 5k splits, for race finishers.

Once race results are deemed official, all official finishers will be emailed a link to download their. Have family or friends running.