The field includes running icon Meb Keflezighi and defending champions Mary Keitany and Kurt Fearnley.
Alicia Keys, Ethan Hawke and Katrina Bowden are among the stars scheduled to run the 26.2-mile route Sunday.
More than 50,000 people are expected to run Sunday in the city's so-called "biggest block party."
Harriette Thompson recently became the oldest woman ever to complete 26.2 miles officially.
Talented distance runners could possess evolutionary 'signal' from the days of hunter gatherers.
Tour companies happy after Pyongyang overcomes apparent paranoia over disease.
Foreign runners allowed to participate in Pyongyang marathon for first time last year.