Big Sky Marathon

Big Sky Marathon 2026 Course Analysis

Big Sky Marathon is a full marathon held in Big Sky, United States of America. It is scheduled for Sunday 12 July 2026. The course is run on road surface with 208m of total climbing and around 1234m of descent (a net drop of roughly 1026m), with its high point near 2600m above sea level. For registration and full race details, visit the official Big Sky Marathon website.

Elevation Profile

This is a net-downhill course: it descends roughly 1026m more than it climbs (208m of ascent against about 1234m of descent), dropping from a high point near 2600m toward 1569m 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. Moderate temperatures between 9°C and 27°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a low chance of rain (0%), so dry conditions are likely.

Surface Type: Road

Big Sky 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 Big Sky Marathon against other marathons to find the right race for your goals.