80.8 kmMixed road & trail🇺🇸 Boonsboro, United States

JFK 50 Mile

Saturday, 21 November 2026In 41 days · Start 06:30

America's oldest ultramarathon, first run in 1963: a climb onto the rocky Appalachian Trail, 26 flat miles on the C&O Canal towpath along the Potomac, then rolling country roads to Williamsport.

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Facts checked 10 Oct 2026 against jfk50mile.org, runsignup.com.

Elevation gain

600 m

Very hilly · ↓ 650 m

Start altitude

168 m

above sea level, from terrain data

Temp at start

2°C

Peaks around 6°C

Entry fee

≈ $250

Open entry

Finishers

—

typical year

Course

Point to point

13h cut-off

Getting thereFly into IAD (Dulles), about 65 km from the start

Course map

A detailed route is not available for this race yet. The marker shows the race location.

Elevation profile

Very hilly: about 600 m of climbing and 650 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

2°C

Peak during race

6°C

Humidity

72%

Chance of rain

Wind

11 km/h

Race day in past years

Historical averages for 21 November ±3 days, 2016–2025, from 06:30 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

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<a href="https://irun42.com/race/jfk-50" title="JFK 50 Mile on iRun42"><img src="https://irun42.com/badge/jfk-50.svg" width="300" height="120" alt="JFK 50 Mile: course, elevation and race-day weather on iRun42" /></a>