Catalina Island Half Marathon

Catalina Island Half Marathon 2026 Course Analysis

Catalina Island Half Marathon is a half marathon held in Avalon, United States of America, scheduled for Saturday 14 November 2026. The course is run on trail surface with 703m of total elevation gain, reaching a maximum altitude of 490m above sea level. For registration and full race details, visit the official Catalina Island Half Marathon website.

Elevation Profile

This is a very challenging course with 703m of total elevation gain — significantly more than the average trail marathon. The route ranges from 5m to 490m above sea level (485m range). Hill training is essential, and runners should expect a significantly slower time compared to a flat course.

Expected Race Day Weather

Based on historical weather data for November, the expected race day conditions are as follows. Moderate temperatures between 15°C and 20°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: Trail

Catalina Island Half Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are inherently slower than road courses due to uneven footing, technical sections, and often steeper gradients. Trail-specific shoes with good grip are recommended, and runners should expect a finish time 10-20% slower than their equivalent road marathon time.

How Difficult Is Catalina Island Half Marathon?

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