Greifenseelauf

Greifenseelauf 2025 Course Analysis

Greifenseelauf is a full marathon held in Uster, Switzerland, scheduled for Saturday 20 September 2025. The course is run on road surface with 97m of total elevation gain, reaching a maximum altitude of 407m above sea level. For registration and full race details, visit the official Greifenseelauf website.

Elevation Profile

This is a very flat course with only 97m of total elevation gain across the full distance. The course ranges from 365m to 407m above sea level — a 42m 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 September, the expected race day conditions are as follows. Moderate temperatures between 14°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 over the full distance. There is a low chance of rain (0%), so dry conditions are likely.

Surface Type: Road

Greifenseelauf 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 Greifenseelauf?

Our difficulty rating for Greifenseelauf 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 Greifenseelauf against other marathons to find the right race for your goals.