Chicago marathon sells out in record time

March 3, 2011 2:11:04 PM PST
The Chicago marathon is already breaking records - with registration closing in just 31 days.

Forty-five thousand people signed up for the 34th Annual Chicago Marathon, which will take place October 9th.

Organizers announced Thursday that runners raised $12 million for charities during last year's marathon. That's also record.

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