World’s top ultra runners announced

Posted in At the Races on Fri 01 Nov ’13

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An ISF ranking has been devised for the three skyrunning disciplines based on 54 races in 2013 (24 Ultra, 20 Sky and 10 Vertical). One of the principal aims is to take into account the quality of the field and the time relative to the winner…

… along with a proprietory ISF algorithm and other factors. Read the full story here

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