Race Discovery
Mcrrc Seneca Creek Greenway Trail Marathon & 50K
Mcrrc Seneca Creek Greenway Trail Marathon & 50K logo

Mcrrc Seneca Creek Greenway Trail Marathon & 50K

Gaithersburg, Maryland, United States View on map
Mar 06, 2027 (America/New_York local time)
Running

About this race

Welcome to the Seneca Creek Greenway Trail Marathon & 50K, where you will experience some of Montgomery County's finest single-track trails. This is a challenging, but beautiful run for all!

The Seneca Creek Greenway Trail Marathon and 50K is a low-key, low-priced, and fun-filled event along the beautiful Seneca Creek Greenway Trail and parallel trails. Marathon and 50K participants will have the option to choose their final distance during the race (either stop at the finish line for the "marathon" or keep going to complete the 50K).

All participants will receive a custom race bib, short-sleeved tech shirt, and a finisher's medal!

Pick your distance

Running

Marathon Registration

Mar 06, 2027 Marathon 7:30 AM
$70.00
Open

50K Registration

Mar 06, 2027 Ultra 7:30 AM
$70.00
Open

Typical race-day weather

Based on 7 years of Open-Meteo archive data for this event's race dates in Gaithersburg, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 2.8° / Maximum temperature (race-week average) 13.3°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) -1.5° / Maximum feels like — heat index / wind chill (race-week average) 12.3°
Peak wind (km/h)
Strongest wind of the day (race-week average)
21.1
Precip (mm)
Precipitation over the day (race-week average)
3.4mm
Humidity
Mean relative humidity (race-week average)
65.1%
Sunrise
Sunrise at the start line on March 6, 2027 (EST)
Sunset
Sunset at the start line on March 6, 2027 (EST)
Daylight
Hours between sunrise and sunset on race day
11h 32m

The sun rises at 6:33 AM and sets at 6:06 PM local time (EST) in Gaithersburg on March 6, 2027 — 11h 32m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 15 Gaithersburg events

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