Calgary Half Marathon

Calgary Half Marathon 2025 Course Analysis

Calgary Half Marathon is a half marathon held in Calgary, Canada, scheduled for Sunday 25 May 2025. The course is run on road surface with 136m of total elevation gain, reaching a maximum altitude of 1057m above sea level. For registration and full race details, visit the official Calgary Half Marathon website.

Elevation Profile

With 136m of elevation gain, this is a moderately undulating course. The route ranges from 1035m to 1057m above sea level (22m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.

Expected Race Day Weather

Based on historical weather data for May, the expected race day conditions are as follows. Moderate temperatures between 7°C and 25°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 (1%), so dry conditions are likely.

Surface Type: Road

Calgary 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 Calgary Half Marathon?

Our difficulty rating for Calgary 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 Calgary Half Marathon against other half marathons to find the right race for your goals.