Participants at Tough Mudder 2013 (an endurance event) in Kettering/North East London

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Size: 6100px × 4067px
Location: UK
Photo credit: © AHOWDEN INTERNATIONAL / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 2013, endurance, event, everest, kettering, london, mudder, obstacle, particiapnts, people, runners, running, tough