Granite State Marathon

Nashua, United States of America · Saturday 9 May 2026

RoadFull Marathon

Running the Granite State Marathon in May means you're getting the New England spring experience at its best, with the course taking you through Nashua's mix of suburban neighborhoods and quiet residential streets. The terrain lives up to its "flat to gently rolling" description, which sounds easier than it actually feels once you're at mile 18. Those gentle rollers accumulate, and the constant micro-undulations can wear on your quads in a way that a truly flat course wouldn't. You won't see dramatic elevation changes, but you will feel them in your legs. The course stays relatively low in elevation, hovering between 36 and 54 meters above sea level, so there's no real alpine climbing to worry about. What you get instead is the rhythm-disrupting reality of constant slight inclines and descents that never let your body settle into a pure groove. The scenery is quintessentially New England suburban, which means tree-lined streets, some sections cutting through parks, and neighborhoods where locals occasionally turn out with signs and water. May in New Hampshire brings warm temperatures that can climb into the 60s or 70s by race day, so hydration and sun exposure become real considerations on a course with limited shade in stretches. The road surface is straightforward asphalt throughout, nothing fancy, and you'll notice the Nashua area's typical infrastructure: sidewalks where they exist, some rough patches, and a few sections where you're running alongside light traffic. It's not a scenic mountain marathon or a dramatic coastal route, but it's a legitimate road race where you earn your time and feel the miles in your legs rather than getting carried away by scenery.

Difficulty Calculator

Your Marathon Time

Adjusted Time

3:47:35

Very Easy

Time difference: -12.4 minutes compared to a flat, road, temperate course.

Course Details

Elevation Gain0m

Elevation High54m

Elevation Low36m

Weather Forecast

High13°C

Low3°C

Chance of Rain80%

Granite State Marathon 2026 Course Analysis

Granite State Marathon is a full marathon held in Nashua, United States of America, scheduled for Saturday 9 May 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 54m above sea level.

Elevation Profile

This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 36m to 54m above sea level — a 18m 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 May, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 3°C to 13°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a high chance of rain (80%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.

Surface Type: Road

Granite State 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 Granite State Marathon?

Our difficulty rating for Granite State 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 Granite State Marathon against other marathons to find the right race for your goals.

Granite State Marathon

Difficulty Calculator

Course Details

Weather Forecast

Granite State Marathon 2026 Course Analysis

Elevation Profile

Expected Race Day Weather

Surface Type: Road

How Difficult Is Granite State Marathon?

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