Running: Half Marathon, 50K (Ultra)
Gaithersburg, Maryland
March 11th, 2023 
11950 Clopper Road, Gaithersburg, MD
The Seneca Creek Greenway Trail Marathon and 50K is a Running race in Gaithersburg, Maryland consisting of a Half Marathon and 50K (Ultra).
Weave made a number of changes for the running of the annual Seneca Creek Greenway Trail Marathon and 50K for 2015, and weare excited to share we have new directors, a new out and back alollipopa style course, a new start & finish at a family friendly location, Seneca Creek State Park!
Some of the best things about the past years havenat changed however. Weare still a low-key, low-priced, and fun filled event. Weare still running the beautiful Seneca Creek Greenway Trail and youall still have the option to choose your race distance mid-race!
Registration
We will have online registration only. Please note that registration will close when we
Claim this race to update race dates, course descriptions, upload race pictures, and more.
CLAIM RACEWe try to keep race listings up-to-date, but sometimes miss updates. Click below to submit updated race information and details.
SUBMIT UPDATE