The Boise Four - Race Series

Experience the thrill of The Boise Four - Race Series, a captivating running challenge spanning from May 2 to November 14, 2026, featuring four premier races: the Boise River Marathon, The Boise Marathon, The City of Trees Marathon, and the Boise Half Marathon. This series caters to all runners, from beginners to seasoned marathoners, offering scenic courses along Boise’s picturesque rivers and iconic tree-lined streets. Register by May 1, 2026, to secure your spot and enjoy the flexibility of selecting your race distance for each event at a fixed price. Participants will also receive exclusive series swag, making this a unique opportunity to join Boise’s vibrant running community, celebrate fitness, and achieve your 2026 running goals in style. Don’t miss out on this unforgettable race series experience!