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Bear Brook Trail Marathon

Bear Brook Trail Marathon offers a challenging yet rewarding trail race in Allenstown, NH.

Race Date

Sep 12, 2026

Location

Allenstown, NH

Quick facts

Date
Saturday, September 12, 2026
Location
Allenstown, New Hampshire
Distance
Half marathon (13.1 mi) + 27M
Course
Loop Course
Terrain
Trail
USATF certified
Not listed

Highlights

Course

Shaded

The Experience

The Bear Brook Trail Marathon, set in Allenstown, New Hampshire, presents a demanding trail running experience. While specific historical data like inaugural year or exact field sizes are not detailed, the race is noted for its steady field trend, suggesting a consistent draw for trail enthusiasts.

The course is primarily on trails, offering a natural and rugged running environment. Runners can expect a significant challenge, with the provided elevation data indicating a substantial amount of gain and loss, characteristic of mountainous terrain. This makes it a true test for those seeking an adventurous race.

Participants typically experience a race-day climate ranging from cool to warm, with moderate humidity and light winds, contributing to a generally favorable environment for a demanding trail event. The race's focus is on the rugged beauty and challenge of the New Hampshire landscape.

Race-provided description

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Logistics

Race Day

Saturday, September 12, 2026

Start Time

TBA

Start Location

Allenstown, NH

Directions

Course Info

Course Type

Loop Course

Terrain

trail

Scenery

Forest

Surface

Dirt Trail

Difficulty

Mountainous

Net Drop/km

0 m (Flat)

Separation

0.0%

Also Offers

27M

Quality Score

Methodology
Heritage0/20

first year

Size0/15

no finisher counts yet

Momentum3/5

small race — neutral

Loyalty0/20

needs a few years of results

Course & details6/15

3 timing sources · 8 photos

National draw0/10

no finisher data yet

Front-pack speed0/5

no winner time yet

Weather2/10

typical high 74°F

Race Day Weather

5-year historical avg

Start (Low)

56°

Afternoon (High)

74°

Warm — hydration strategy is key, start conservatively

0.1"

Precipitation

8 mph

Wind

78%

Humidity

Race Photos

Frequently asked

When is the Bear Brook Trail Marathon?

The Bear Brook Trail Marathon is held on Saturday, September 12, 2026.

Where does the Bear Brook Trail Marathon take place?

It takes place in Allenstown, New Hampshire.

What distances does the Bear Brook Trail Marathon offer?

The half marathon (13.1 miles), plus 27M.

Is the Bear Brook Trail Marathon course flat and good for a PR?

The Bear Brook Trail Marathon is a mountainous, loop course course.

HalfRuns editorial — independent, no paid placement.

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