Prince of Wales Island International Marathon

Prince of Wales Island International Marathon 2026 Course Analysis

Prince of Wales Island International Marathon is a full marathon held in Hollis, United States of America, scheduled for Saturday 23 May 2026. The course is run on road surface with 642m of total elevation gain, reaching a maximum altitude of 114m above sea level. For registration and full race details, visit the official Prince of Wales Island International Marathon website.

Elevation Profile

This is a very challenging course with 642m of total elevation gain — significantly more than the average road marathon. The route ranges from 1m to 114m above sea level (113m 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 May, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 17°C and 31°C. Heat is one of the biggest performance factors in marathon running — research shows that for every degree above 15°C, marathon times slow by approximately 1-2%. Extra hydration and a conservative start are strongly recommended. There is a high chance of rain (77%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.

Surface Type: Road

Prince of Wales Island International 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 Prince of Wales Island International Marathon?

Our difficulty rating for Prince of Wales Island International 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 Prince of Wales Island International Marathon against other marathons to find the right race for your goals.