Tackling the world's coldest marathon

The world's hardest, and coldest, marathon has taken place at Russia's Barneo ice station at the geographic North Pole.

The 26.2-mile (42.2km) race, in temperatures as low as -30C (-22F), tempted 47 competitors from 20 countries to pit themselves against the elements.

American Mike Wardian was first home in four hours, seven minutes and 40 seconds. Germany's Anne-Marie Flammersfeld won the women's event in a time of 4:52.45.

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