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It’s time to get your hands (and everything else) dirty. Tough Sh!t is organised by the international charity, WaterAid and it is a series of muddy obstacle runs like no other! Join hundreds of other challengers running across, splashing through and climbing over epic obstacles along the unique 10k-ish toilet-themed course.
You can predict your finish time for this race based on a recent race you've run. Enter the details below - select a similar type of race (hilliness and terrain) for the best prediction.