The 2.4 mile swim takes place in the Ohio River. The bike course incorporates the City of LaGrange and Oldham County while the run course takes athletes past many of Louisville's signature sites, including its waterfront, University of Louisville campus, Churchill Downs and historic neighborhoods. The race finishes at Fourth Street Live in downtown Louisville. Ironman Louisville will serve as one of the worldwide qualifying events for the 2012 Ironman World Championship. All athletes must be 18 years of age on race day.