Sat Sep 11, 2010
The 15th Running of the Chicago Half Marathon & 5K takes place on Sunday, September 11, 2011. The 14th Annual Chicago Half Marathon & 5K sold out at 20,500 participants. Don’t miss your chance to participate in this 15th annual event. The Chicago Half is the fifth largest half marathon in the U.S. and the 21st largest road race in the country.