New Hampshire Marathon
Bristol, United States of America · Sunday 3 October 2027
New Hampshire Marathon, held on October 4, 2025, in Bristol, New Hampshire, is a scenic event that takes runners around the picturesque Newfound Lake. The course is mostly a loop, featuring a mix of hilly terrain with a maximum elevation of 746 feet and a minimum of 462 feet. Despite its hilly profile, the marathon is a Boston qualifier, making it a popular choice for serious runners.
Difficulty Calculator
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:m
:s
Adjusted Time
4:12:32
Time difference: +12.5 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain351m
Elevation High225m
Elevation Low142m
Weather Forecast
High19°C
Low14°C
Chance of Rain16%
How hard is New Hampshire Marathon?
Difficultharder than 69% of marathons
Flattest / easiestHardest
On our difficulty model, New Hampshire Marathon plays about 14 minutes slower than an average road marathon for a 3:30 runner. It ranks #362 hardest of 1151 marathons we analyse, and #199 of 576 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at New Hampshire Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On New Hampshire Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:05:02 | +05:02 |
| 3:30:00 | 3:38:36 | +08:36 |
| 4:00:00 | 4:12:32 | +12:32 |
| 4:30:00 | 4:46:49 | +16:49 |
| 5:00:00 | 5:21:26 | +21:26 |
| 5:30:00 | 5:56:21 | +26:21 |
| 6:00:00 | 6:31:33 | +31:33 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
New Hampshire Marathon 2027 Course Analysis
New Hampshire Marathon is a full marathon held in Bristol, United States of America. It is scheduled for Sunday 3 October 2027. The course is run on road surface with 351m of total climbing, with its high point near 225m above sea level. For registration and full race details, visit the official New Hampshire Marathon website.
Elevation Profile
This is a hilly course with 351m of total climbing, rising to around 225m above sea level. It pays to train on hills and to pace the climbs conservatively.
Expected Race Day Weather
Based on historical weather data for October, the expected race day conditions are as follows. Moderate temperatures between 14°C and 19°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a low chance of rain (16%), so dry conditions are likely.
Surface Type: Road
New Hampshire Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare New Hampshire Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If New Hampshire Marathon fits your goal, these courses play out about the same on our difficulty model.
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