
Issaquah, United States of America · Saturday 7 November 2026
Issaquah, located in the Pacific Northwest near Seattle, sits in a region known for its evergreen forests, misty mornings, and mild autumn weather. The town itself offers a classic Pacific Northwest setting where runners can expect cool temperatures in November and the possibility of light rain. The surrounding landscape combines suburban neighborhoods with proximity to natural areas, making it a practical base for a road marathon that takes advantage of the region's accessible terrain. The Grand Ridge Trail Marathon follows a flat to gently rolling course that presents no significant elevation challenges, making it an ideal choice for runners targeting a fast time or those building their marathon fitness. On a road surface, the course avoids the technical footing of true trail running while still offering an engaging route through the area. Runners should expect steady, rhythmic miles without major climbs to disrupt their pace, though the gentle rolling sections will still demand consistent effort. November conditions in this part of Washington mean layering is smart, and being prepared for wet roads is wise, but the lack of dramatic elevation gain means you can focus on maintaining your rhythm rather than managing steep terrain.
Adjusted Time
3:52:32
Time difference: -7.5 minutes compared to a flat, road, temperate course.
Grand Ridge Trail Marathon (November) is a full marathon held in Issaquah, United States of America, scheduled for Saturday 7 November 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level.
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Grand Ridge Trail Marathon (November) 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.
Our difficulty rating for Grand Ridge Trail Marathon (November) 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 Grand Ridge Trail Marathon (November) against other marathons to find the right race for your goals.
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