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Your complete North Dakota 2025 marathon calendar. Find every marathon happening in North Dakota in 2025 with comprehensive race details, registration information, and official results, including the Fargo Marathon (Fargo), Williston Marathon (Williston), and Maah Daah Hey Trail Run Marathon (Medora).
Each marathon listing includes a 2025 marathon guide including dates, locations, course details, weather conditions, and relevant links for registration and more information. We maintain the most current results database, publishing official results on race day, plus complete 2024 results for year-to-year comparison.
Fargo, North Dakota
May 31, 2025
The Fargo Marathon captivates runners with its flat, fast course that starts and finishes inside the lively Fargodome, offering an indoor atmosphere unique to this race. Known for its vibrant community support, live music, and scenic route through Fargo and Moorhead, this Boston qualifier provides an unforgettable experience for all participants.
Williston, North Dakota
June 7, 2025
The Williston Marathon offers the rare thrill of running on an airport runway at the Williston Basin International Airport in North Dakota, challenging participants with its flat yet wind-exposed double-loop course. This Boston-qualifying race provides a well-supported and memorable experience, with multiple distances available and a festive atmosphere for reflection and celebration post-race.
Medora, North Dakota
July 26, 2025
The Maah Daah Hey Trail Run Marathon takes runners on a 26.5-mile journey through the rugged and picturesque Badlands, starting and ending at the Wannagan Campground in Medora, North Dakota. This marathon offers a truly immersive experience with its diverse terrain, including hard-packed clay, rocky paths, and rolling hills, all set against the backdrop of breathtaking landscapes and potential wildlife sightings.
Bismarck, North Dakota
September 21, 2025
The Bismarck Marathon features a picturesque out-and-back course along the scenic Missouri River, starting and finishing at the iconic North Dakota State Capitol Grounds. Known for its flat and fast terrain, the race is a favorite for runners aiming to qualify for the Boston Marathon, supported by strong community involvement and a variety of race events for all ages.