location_city Gaithersburg
location_on Maryland
flag United States
calendar_today 07 Mar, 2026
directions_run Running
language Official Website
RegisterWelcome 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!
Mar 07, 2026
Distance — Other
Type — Road running
66 days remaining
Mar 07, 2026
Distance — Marathon
Type — Road running
66 days remaining
These values represent the 3-year monthly averages for March in Gaithersburg.
Gaithersburg is a city of 70,000 people (2020) in Montgomery County, Maryland. It is a suburb of Washington, D.C.
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location_on Rockville, Maryland, US
calendar_today Feb 07, 2026
location_on Clarksburg, Maryland, US
calendar_today Feb 07, 2026
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