Aspen Valley Marathon

Aspen Valley Marathon 2026 Course Analysis

Aspen Valley Marathon is a full marathon held in Aspen, United States of America. It is scheduled for Saturday 25 July 2026. The course is run on road surface with 48m of total climbing and around 454m of descent (a net drop of roughly 406m), with its high point near 2420m above sea level. For registration and full race details, visit the official Aspen Valley Marathon website.

Elevation Profile

This is a net-downhill course: it descends roughly 406m more than it climbs (48m of ascent against about 454m of descent), dropping from a high point near 2420m toward 1985m above sea level. Point-to-point downhill courses like this are among the fastest available for a personal best or a Boston qualifier - just be aware that sustained descending fatigues the quads late in the race, so ease off early and do some downhill running in training.

Expected Race Day Weather

Based on historical weather data for July, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 16°C and 32°C. Heat is one of the biggest performance factors in distance running - for every degree above 15°C, finish times can slow by roughly 1-2%. Extra hydration and a conservative start are strongly recommended. There is a high chance of rain (54%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.

Surface Type: Road

Aspen Valley Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.

Looking for an easier marathon or a tougher challenge? You can also compare Aspen Valley Marathon against other marathons to find the right race for your goals.