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Your complete Portland 2025 marathon calendar. Find every marathon happening in Portland, Maine in 2025 with comprehensive race details, registration information, and official results, including the Pine Tree Marathon, and Maine Marathon.
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.
Portland, Maine
May 11, 2025
The Pine Tree Marathon in Portland, Maine, features a flat, seven-lap course set entirely within the scenic Back Cove City Park, making it ideal for runners targeting a Boston Marathon qualification or personal best. As part of the New England Challenge series, this race offers the chance to engage with a vibrant running community in a supportive and picturesque environment.
Portland, Maine
October 5, 2025
The Maine Marathon takes runners on a picturesque out-and-back route through Portland's Back Cove, featuring rolling hills and stunning views of the Casco Bay coastline, especially between miles 5 and 17. Known for its vibrant community support and well-organized logistics, this early October race also serves as a Boston Marathon qualifier and donates a significant portion of its proceeds to local charities, making it both a challenging and rewarding experience.