Participants help each other through the Everest 2.0 obstacle along the Tough Mudder Northeast course on the New Hampshire Motor Speedway grounds in Loudon on Sunday, Aug. 14, 2016. (ELIZABETH FRANTZ / Monitor staff)
Participants help each other through the Everest 2.0 obstacle along the Tough Mudder Northeast course on the New Hampshire Motor Speedway grounds in Loudon on Sunday, Aug. 14, 2016. (ELIZABETH FRANTZ / Monitor staff)

Friends and strangers alike helped each other complete over 20 obstacles along the Tough Mudder Northeast endurance event on Sunday. The course was held on the grounds of the New Hampshire Motor Speedway in Loudon and was over 10 miles long.