However, 1,517 runners, most of whom were young, developed symptoms such as vomiting, dizziness and cramps during the event's various races, the organizing committee said.
Zhang Huijun, publicity official with the organizing committee, said local authorities will compensate the families of both runners.
"The amount is yet to be decided. We are discussing the issue with both families," Zhang told China Daily.
"But the money is just for humanitarian aid. We are also assisting the families as they seek compensation from life insurance companies."
The organizers said they bought insurance for all participants before the event.
Chen's family accepted the doctor's cause of death and did not ask for an autopsy, according to the statement.
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