The Stewart McKelvey Fredericton Marathon Race Weekend is a cornerstone event in the Maritime running calendar, celebrated for its rich history and community spirit. Established in 1978, it is the longest-running marathon in the Maritime Provinces and has grown into a multi-day festival of running that attracts participants from across Canada and beyond. The 2025 edition marked the 47th annual occurrence, setting a new record with over 3,200 registered runners.

The event offers a diverse range of races, including an elite 5K, open 5K, 10K, half marathon, full marathon, youth fun runs, and virtual options. The marathon is renowned for its fast, flat, and scenic course, making it a popular choice for runners seeking personal bests or Boston Marathon qualification. The weekend also emphasizes inclusivity, with events for all ages and abilities, and fosters a vibrant atmosphere in Fredericton's downtown and along the picturesque riverfront.

The Fredericton Marathon course is celebrated for its fast and flat profile, making it ideal for runners aiming for personal bests or Boston Marathon qualification. The route combines paved city streets with well-maintained gravel trails, offering a smooth and enjoyable running experience. The course winds through downtown Fredericton and along the scenic Saint John River, providing picturesque views and a supportive atmosphere. Elevation changes are minimal, with only gentle inclines, ensuring a consistently fast pace throughout the race.

- 47th annual running in 2025, the longest-running marathon in the Maritimes
- Record participation with over 3,200 runners
- Fast, flat, and Boston-qualifying course
- New Elite 5K race with cash prizes
- Youth fun runs and virtual event options
- Scenic route along Fredericton's riverfront and trails