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Your complete Boise 2025 marathon calendar. Find every marathon happening in Boise, Idaho in 2025 with comprehensive race details, registration information, and official results, including the Boise River Marathon, Famous Idaho Potato Marathon, and Boise 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.
Boise, Idaho
May 3, 2025
The Boise River Marathon takes runners on a scenic journey along the Boise River Greenbelt, featuring a course that combines rolling hills and flat stretches with a unique start at a state park and finish at a local brewery. This marathon offers a memorable experience with picturesque views, historical sites, and a vibrant community atmosphere, making it an ideal choice for runners of all levels seeking both challenge and charm.
Boise, Idaho
May 17, 2025
The Famous Idaho Potato Marathon takes runners on a picturesque journey from Lucky Peak Lake along the Boise River Greenbelt, offering a predominantly flat course ideal for personal bests and Boston Marathon qualifiers. Celebrating Idaho's potato heritage, the race concludes with a festive finish line featuring a baked potato bar, making it a memorable event for both competitive racers and families alike.
Boise, Idaho
June 21, 2025
The Boise Marathon features a mostly flat course that weaves through downtown Boise, offering runners breathtaking views of the Boise River and surrounding foothills. As part of the Boise Marathon Series, this summer race is renowned for its stellar organization and rewarding experience, complete with exclusive swag and delightful finish line treats.
Boise, Idaho
June 28, 2025
The Dirty Dog Trail Marathon in Boise, Idaho, is a thrilling adventure through the Ridge to Rivers Trail System, featuring challenging climbs like the "Hard Guy" ascent, where the first male and female to reach the top earn a $100 reward. With breathtaking views and the camaraderie of fellow trail enthusiasts, this race offers a uniquely invigorating experience while supporting local causes such as the Ridge to Rivers Trail System and the Humane Society.
Boise, Idaho
October 11, 2025
The City of Trees Marathon in Boise captivates runners with its scenic course that winds through tree-lined streets and verdant parks, offering stunning views of the Boise River. Known for its enthusiastic local support and the camaraderie of fellow runners, this marathon provides a perfect blend of natural beauty and community spirit, making it an inviting experience for both newcomers and seasoned marathoners.