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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

MAURTEN

MAURTEN FUELING TIPS

How to get used to your race day fuel from the official Hydrogel Sports Fuel Partner of the Bank of America Chicago 13.1.

DON’T LEAVE IT TO RACE DAY. FUELING STARTS IN TRAINING.

1. Carbohydrates are the currency of fueling. Science has shown that consuming them during training and racing improves performance, providing fuel for your muscles and preventing energy dips, and helps you recover faster. By fueling different tempos and intensities, your body adapts quicker to becoming a marathon runner and tolerating more carbohydrates.

2. We train our legs and our lungs. We also need to train our guts. Taking in a high amount of carbohydrates can cause stomach issues for many athletes, meaning you need to practice carbohydrate intake during training. Maurten Hydrogel Technology makes fueling easier, enabling athletes to consume more carbohydrates per hour. The carbohydrates are encapsulated in a hydrogel and carried through the stomach to be absorbed. Plan, experiment and get used to your race day fuel in training to learn what your body can tolerate.

3. Getting used to fuel is not just about adapting your body to training. Being familiar with the texture, the taste and the sensations as the energy is absorbed from Maurten Gels and Drink Mixes means one less surprise on race day.

4. Know where to expect fuel in the race and recreate it in your longer training runs. Running loops near your home with regular fueling intervals is a good way to prepare for what race day will be like.

5. Don’t just practice in-race fueling. Before longer runs or hard training sessions, try to be consistent with breakfast. Refine a pre-race meal that’s light and comfortable.

6. Be aware of what you are eating in the 24 hours before the race starts. Try to eat high-carbohydrate meals that are low in fat and fiber. Load on carbohydrates by sipping Maurten Drink Mix 160.

7. Don’t do anything new on race day. Trust the work you have done. Remember: “If my body can take it in training, it can take it in the race.” — Eliud Kipchoge.

MAURTEN WILL BE THERE WITH YOU, ON-COURSE

Hydrogel Fuel Depots with Gel 100 and Gel 100 Caf 100 will be be available at the start line and mile 8. Grab a Maurten Solid bar at the finish line.

Learn how to fuel different distances with the Maurten Fuel Guides.


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