
About the event
Join the Boulder Rez Half Marathon for a 13.1-mile journey along the picturesque trails encircling the Boulder Reservoir. With just 200 feet of elevation gain, the flat course comprises two loops, making it accessible for runners aiming for speed or enjoying a leisurely pace. Happening on April 12, 2025, and organized by BBSC Endurance Sports, participants will be treated to breathtaking views of the Rocky Mountains throughout the predominantly dirt road and trail course. Whether it's your first half marathon or you're a seasoned runner, this event promises a rewarding experience.
Date:
Sat
Apr 12
2025
Location:
Distance:
Elevation profile:
Flat
Website:
LinkElevation gain:
Number of participants:
Find the best training plan for your goals and the distance you’re planning to run:
Stories from Runnas
The Boulder Rez Half Marathon features a flat, two-loop course around the Boulder Reservoir, offering runners minimal elevation gain and expansive views of the surrounding mountains. Set for April 12, 2025, this race is perfect for both novice and experienced runners seeking a scenic summer half marathon.
If you are an official race organiser with any questions about this page, please get in touch: races@runna.com
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