C&O Canal 100
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C&O Canal 100
The C&O Canal 100 is a 100 mile ultramarathon held in Knoxville, Maryland. The course uses the historic C&O Canal towpath and runs along the Potomac River between Antietam and Brunswick, Maryland. The event is based at Camp Manidokan, which serves as the start, a halfway point, and the finish.
The route is organized as one approximately 40 mile loop followed by two approximately 30 mile loops. Aid stations are placed throughout each loop, with roughly seven aid stations per loop and distances between stations reported as ranging from 3 to 6.9 miles. The course follows low elevation terrain with smooth surfaces typical of a towpath, and is scheduled in spring when temperatures are generally temperate.
Registration for the event opens on January 1, 2027. The race is listed as a qualifier for WSER 2027. Past participant feedback highlights well stocked aid stations and volunteer support along the course.
The description focuses on course layout, aid station spacing, location, and logistical notes provided by the organizer. Details such as the official course map and a full course description are maintained by the event organizer. Visit the organization's website for the most recent information.
