Course features rolling hills that require sustained effort throughout, testing both strength and endurance.
Only 1.1% of finishers qualified for Boston, indicating the demanding nature of the race relative to BQ times.
A small field size of 94 allows for a personal atmosphere, with less congestion on the roads compared to larger marathons.
Located in Boulder, CO, the race offers stunning views of the Flatirons and the opportunity to experience the region's high-altitude conditions.
With only 94 finishers in 2026, this race can feel intimate, providing a unique chance to connect with fellow runners amidst the stunning Colorado backdrop. The rolling hills challenge you relentlessly, making it essential to account for elevation changes in your training. Don’t underestimate the potential for fatigue as you navigate this varied terrain, especially in the summer heat.
Focus on maintaining an even effort on hills to avoid burnout; practice hill repeats during training. Hydration will be key in the summer heat, so plan your water stations accordingly to ensure you stay fueled throughout the race.
Detailed elevation profile data is being prepared for this race. Check back soon for interactive course analysis.
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