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Brooklyn — Organizers of a muddy obstacle course at Michigan International Speedway say roughly 7,000 people took part in the event this past weekend.

Tough Mudder Michigan operations manager Alison Schmidt says about 5,700 people tackled the course on Saturday, and roughly 1,300 people went through it Sunday. The Jackson Citizen Patriot reported about 1,000 spectators also were at the speedway southeast of Jackson.

Tough Mudder’s website says its obstacle courses are 10 to 12 miles long and focus on team participation rather than finishing times. Most event participants at Michigan International Speedway took on the course in teams, and some wore costumes.

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