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Fall marathon training is officially underway and our Chicago athletes are finding themselves in some heavy humidity as the double digit long runs begin. Heat acclimation is a tricky thing but very important, as the fall months don’t always bring cooler temps.
While there are many factors that you can control on race day – Wearing clothing and shoes that are familiar, practicing with hydration and fuel, and layering on anti-chafe gel, you can’t control the weather. Chicagoan’s are no strangers to 100 degree days in October and 20 degree days in May. So, get out there and build on the heat training just in case.
If you haven’t found a fall marathon yet, there are still plenty to choose from in and around Chicago.Here are a few of our favorites.
Saturday, September 6, 2025 – Last Chance BQ.2 Marathon – Geneva, IL – Read a past race review here.
Sunday, September 7, 2025 – Last Chance BQ GR – Grand Rapids, MI – Chicago Athlete will be at this racefor the first time this year!
Saturday, September 13, 2025 – DoLittle Marathon – Waukesha, WI
Saturday, September 20, 2025 – Air Force Marathon – Dayton, OH
Sunday, September 21, 2025 – Fox Cities Marathon – Menasha, WI
Sunday, September 21, 2025 – Fox Valley Marathon Races – St. Charles, IL
Sunday, September 28, 2025 – Quad Cities Marathon – Moline, IL – Read a past review here.
Sunday, October 5, 2025 – Medtronic Twin Cities Marathon Weekend – Minneapolis, MN – Read a pastreview here.
Sunday, October 5, 2025 – Milwaukee Lakefront Marathon – Milwaukee, WI – Read a past review here.
Saturday, October 11, 2025 – Des Plaines River Trail Races – Libertyville, IL
Sunday, October 12, 2025 – Chicago Marathon – Chicago, IL*Registration closed.
Sunday, October 19, 2025 – Detroit Free Press Marathon – Detroit, MI – Read a past review here*Sold out.
Sunday, October 19, 2025 – Grand Rapids Marathon – Grand Rapids, MI – Chicago Athlete will be at thisrace for the first time this year!
Saturday, November 1, 2025 – Fall Back Blast – Eau Claire, WI
Saturday, November 8, 2025 – Indianapolis Monumental Marathon – Indianapolis, IN
