http://www.theguardian.com/lifeandstyle/the-running-blog/2014/sep/16/race--tube-man-v-circle-line-london-underground-video
@Bernhard started
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http://www.theguardian.com/lifeandstyle/the-running-blog/2014/sep/16/race--tube-man-v-circle-line-london-underground-video