It’s time to rally for a cause. To dig deep in your training. To push yourself harder and run farther. To call all your friends and join the movement. The Nike Women’s Marathon has officially challenged the Bank of America Chicago Marathon to see who can run the most miles in August!

Click here to pick a team and join the challenge.

One member from each team will win an entry into their respective marathon! In order to be eligible to win, simply log 20 miles over the 30 days with a minimum of 4 different syncs. Check out the [official rules| for more details.

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