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About 4,200 people took part in the first modern Chicago Marathon.
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Chicago Marathon
Annual footrace held in Chicago, Illinois US
The Chicago Marathon is a road marathon held in October in Chicago, Illinois. It is one of the seven World Marathon Majors. Thus, it is also a World Athletics Label Road Race. The Chicago Marathon is one of the largest races by number of finishers worldwide. The race was awarded…Source: Wikipedia (CC BY-SA)