Eight Spanish athletes have completed the world’s first underground marathon running 25 miles along Madrid’s underground system.

The two women and six men used the underground number 12 route which circles around the southern part of the Spanish capital for their race.

“It was mainly the damp heat and the dull lighting that got to us,” said one of the runners after the event, adding: “But it was worth it.”

This isn’t your normal race for the cure.

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