Humidity and Heat Shuts Down the Chicago Marathon (AP)

Record-breaking heat and humidity forced Race Directors to cancel the Chicago Marathon about 3 hours into the race. Those that hadn't made it to the halfway mark were told to stop (like John Ruberry) - those that had were asked to stop because "we're out of ambulances". I have never been to Chicago when it's 88 degrees and humid, but it sounds pretty bad. But these Chicago runners are tough - of 35,867 runners at the start, 24,933 finished, Kenya's Patrick Ivuti edged Morocco's Jaouad Gharib to win in 2:11.11, and Ethiopia's Berhane Adere (2:33.49) finished just three-tenths of a second in front of Adrianna Pirtea of Romania. You can read more from the Chicago Sun-Times here.

(Chicago firefighters help cool runners, photo courtesy of AP)

Unfortunately, one man died on the course - Chad Schieber, a police officer and father of three from Midland, Mich., who was running with his wife. All my best to his family.

- SD