Some clips from Chicago Tribune’s coverage:
A Michigan man who collapsed during Sunday’s heat-shortened LaSalle Bank Chicago Marathon has died, authorities said… At around 12:10 p.m., near the 20-mile marker at Halsted Street and Cermak Avenues, a Chicago firefighter announced over a public address system: “Attention runners, the marathon has been canceled. You can stop running, now.” … Fire Department spokesman Larry Langford said 302 runners were hospitalized with what he described as heat-related conditions… It was the hottest day in the 30-year history of Chicago’s marathon.
Totally separate issue is the interesting sociological fact that well over 95% of marathon runners were fit, white americans. These are the people you see on TV but not that much on the streets, except on events like this…