‘Runner Down’ was the common call for Chicago and suburban fire department paramedics Sunday morning. The Chicago Marathon was halted at 11:45 a.m. and runners were directed to Grant Park because high heat and humidity presented a serious health risk to runners. A serious risk of heat illness, heat stroke, and heat exhaustion was realized Sunday morning. Many runners have collapsed or required medical assistance from medical teams and paramedics from the City of Chicago and neighboring suburbs. The Chicago Fire Department called for a Third Alarm for extra ambulances to the scene of the Chicago Marathon.
The first place finishers had already crossed the finish line before the Chicago Marathon was stopped.