WATCH: Dubai's Tough Mudder Challenge

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Hundreds of adults - and "mini mudders" - climbed, crawled and carried themselves through mud and 28 obstacles at the Hamdan Sports Complex in Dubai on Friday.

The race, sponsored by du is designed to test competitors' physical strength, stamina, and mental grit. It is a team-oriented challenge with no winners, finisher's medals, or clocks to race against.

Pictures: Residents take up the challenge