Delaware Water Gap, NJ, United States · Saturday, March 20, 2027

Fixed Distance 50 mi

The Mt. Tammany 10

185 days away

64 km Distance

not publishedn/a Climbing

3.2 est Grit · Challenging

Calculated from 64 km alone — the organiser has not published an elevation profile. Read 3.2 as a floor, not a verdict.

40.9678° N, 75.1199° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 12 hours 11:15 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. About average for a 50 mi. Measured against 455 races of the same distance. Cut-off calculator →

Field size ~30 Small. Long stretches with nobody in sight.

DUV results for the 2026 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, March

Daytime high 7°C

Night low -3°C

Rainfall Showers likely

Daylight 12 h 06 m of light

Regional 2001-2020 average for March — NASA POWER, grid elevation 260 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 64 km of trail.

Trail Running Shoes64 km of trail — cushioning that is still there in the last quarter.
Race Nutrition64 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 64 km, without the bounce.
HeadlampsA 12 h limit puts you out there after dark.
GPS WatchesBattery life first — a 64 km day outlasts most full-GPS modes.

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Course Notes

The Start/Finish will be at the Kittatinny Parking Lot Pavilion. An almost 40.0 mile run traversing one of the toughest sections of trails in the DWG area. 10 Climbs, over 10000 ft of gain, in 10 Hrs.

Similar races

Other 50 mi trail ultras, closest in distance first.