Photos: Mud Factor

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A participant goes down the finish slide during the Mud Factor "Seriously Fun, 5K Obstacle Run" at Kincaid Park on Sunday, June 14, 2015.

Thousands of Alaskans participated in the Mud Factor "Seriously Fun, 5K Obstacle Run" at Kincaid Park on Sunday, June 14, 2015.

Competitors ran 5-K on the ski trails in the woods at Kincaid Park before negotiating man-made obstacles, and finally, a mud pit near the end of the course.