The Portland Bulldog Challenge will be held May 18 at the Portland Arts and Technology High School, 196 Allen Avenue. The inaugural 2.5-mile race course will be packed with mud, water, obstacles and more mud. Run/crawl as an individual or in a four-person team. The race supports scholarships, equipment, and training for Portland’s athletic programs. For more information or to register, go to www.portlandbulldogshallenge.com

The Emergency Service Challenge will host the Run For Your Life Challenge on May 25 at the Camden Snow Bowl. The race is an obstacle course event, and themed in the spirit of emergency services. For more information, email to: info@emergencychallenge.org.