C&O Canal 100
Knoxville, United States • 24 Apr 2027
C&O Canal 100
The C&O Canal 100 is a 100-mile ultramarathon in Knoxville, MD that starts and finishes at Camp Manidokan. The course follows the historic C&O Canal towpath along the Potomac River and runs between Antietam and Brunswick, with much of the route close to the Appalachian foothills.
The course layout consists of one approximately 40 mile loop followed by two approximately 30 mile loops. There are roughly seven aid stations placed throughout each loop, some encountered multiple times. Distances between aid stations range from about 3 to 6.9 miles.
The route is characterized by low elevation changes and smooth towpath terrain. The event occurs in spring, when temperate weather is typical for the area. The race is listed as a WSER 2027 qualifier.
Registration for the event opens on January 1, 2027. Visit the organization's website for the most recent information.