The 33703 came from all 50 US states and 400+ other states/provinces/territories, as shown in the chart below. For more, see our Complete Chicago Marathon Coverage.
Chicago Marathon Race Results Analysis
Race results for the 2010 Chicago Marathon can be found at chicagomarathon.com. In 2009, 33703 runners finished the Chicago Marathon. Below, average finish times by age in 2009. See how you compared last year, or consider the average for your age as the time to beat this year.
