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2025 Bank of America Chicago 13.1: General registration for the 2025 Bank of America Chicago 13.1 is sold out. Entries to the event are still available through the Bank of America Chicago 13.1 Charity Program.

Countdown to race day
63 days
18hours
38minutes
08seconds

MAURTEN

OFFICIAL HYDROGEL SPORTS FUEL

Maurten is the Official Hydrogel Sports Fuel for the Bank of America Chicago 13.1.

Maurten discovered a way for athletes to tolerate high concentrations of carbohydrates as fuel during training and racing. Encapsulated by hydrogel, the carbohydrates move easily through the stomach to the intestines, where they get absorbed faster into the body. More comfort and more carbohydrates means better performance. It’s clean, with only natural ingredients — no added flavors, colors or preservatives.

On course, Maurten Hydrogel Fuel Depots will be stocked with Gel 100, the original marathon hydrogel, at mile 8.3. Each Gel contains 25 grams of carbohydrates.

Running the miles in training is only half the story. To understand how your body responds to fueling you need to train your guts as well as your legs. You need to get used to it. Your body adapts to fueling during training so that come race day you know what to expect.

Maurten’s patented Hydrogel Technology is fueling the fastest athletes to world records, gold medals, and world championships.

Learn more at Maurten.comOpens a Dialog.

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