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

Fixed Distance 50 mi

The Mt. Tammany 10

171 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 Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it.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 471 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.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	40mi	30	Justin Lewandowski · 07:28:32	Cali Janulis · 09:08:23
2025	40mi	37	Daniel Hauck · 08:01:22	Emily Walker · 08:31:25
2024	40mi	24	Joey Miller · 07:53:06	Emily Walker · 09:14:31
2023	40mi	31	Justin Lewandowski · 07:52:24	Katie O'Regan · 09:40:36
2022	40mi	28	Justin Lewandowski · 07:24:44	Debbie Livingston · 09:42:21
2021	40mi	13	Jay Lemos · 08:42:24	Jen Gregoris · 10:09:24
2019	40mi	31	Jay Lemos · 07:38:52	Mendy Gallo · 09:18:13
2018	40mi	34	Steven Lange · 07:28:56	Kehr Davis · 08:57:32
2017	40mi	17	Nolan Graham · 07:50:33	Janine Gusztaw · 11:05:47
2016	40mi	20	Jason Lantz · 07:05:18	Kathleen Cusick · 09:44:58

The field shrank 19% between 2025 (37) and 2026 (30). 10% of the 2026 field were women.

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.

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 Shoes 64 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 64 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 64 km, without the bounce.
Headlamps A 12 h limit puts you out there after dark.
GPS Watches Battery life first — a 64 km day outlasts most full-GPS modes.

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 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