Stoneham, MA, United States · Saturday, December 4, 2027

Fixed Distance 50K

TARC Fells Trail Ultra Winter 32 Mile

444 days away

51 km Distance

not publishedn/a Climbing

2.6 est Grit · Entry level

Calculated from 51 km alone — the organiser has not published an elevation profile. Read 2.6 as a floor, not a verdict.

42.4801° N, 71.0995° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~9 Tiny. You will run alone for most of it.

DUV results for the 2025 edition (40mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, December

Daytime high 4°C

Night low -4°C

Rainfall Showers likely

Daylight 9 h 15 m of light

Regional 2001-2020 average for December — NASA POWER, grid elevation 71 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 51 km of trail.

Trail Running Shoes51 km of trail — cushioning that is still there in the last quarter.
Race Nutrition51 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 51 km, without the bounce.
GPS WatchesBattery life first — a 51 km day outlasts most full-GPS modes.

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 4.5

Maurten

Gel 100

Hydrogel technology for 25g carbs per gel with minimal GI distress.

$3.5 ★★★★★ 4.7

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8

All gear guides →

Course Notes

Course is 10K loop that is 100% trails, mostly single track, flat with a few rolling hills, rocks, roots, creek crossings and a little mud thrown in. Will be a fast course.

Similar races

Other 50K trail ultras, closest in distance first.