Santa Rosa Marathon

Santa Rosa Marathon 2026 Course Analysis

Santa Rosa Marathon is a full marathon held in Santa Rosa, United States of America, scheduled for Sunday 23 August 2026. The course is run on road surface with 70m of total elevation gain, reaching a maximum altitude of 52m above sea level. For registration and full race details, visit the official Santa Rosa Marathon website.

Elevation Profile

This is a very flat course with only 70m of total elevation gain across the full distance. The course ranges from 21m to 52m above sea level — a 31m 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 August, the expected race day conditions are as follows. Moderate temperatures between 14°C and 26°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 (0%), so dry conditions are likely.

Surface Type: Road

Santa Rosa 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 Santa Rosa Marathon?

Our difficulty rating for Santa Rosa 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 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 Santa Rosa Marathon against other marathons to find the right race for your goals.