Aspen Valley Half Marathon

Aspen Valley Half Marathon 2025 Course Analysis

Aspen Valley Half Marathon is a half marathon held in Aspen, United States of America, scheduled for Saturday 19 July 2025. The course is run on road surface with 35m of total elevation gain, reaching a maximum altitude of 2305m above sea level. For registration and full race details, visit the official Aspen Valley Half Marathon website.

Elevation Profile

This is a very flat course with only 35m of total elevation gain across the full distance. The course ranges from 2010m to 2305m above sea level — a 295m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.

Expected Race Day Weather

Based on historical weather data for July, the expected race day conditions are as follows. Moderate temperatures between 15°C and 28°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance over the full distance. There is a low chance of rain (3%), so dry conditions are likely.

Surface Type: Road

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

How Difficult Is Aspen Valley Half Marathon?

Our difficulty rating for Aspen Valley Half Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.

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