MCRRC Seneca Creek Greenway Trail Marathon

MAR
7
2026
Join the scenic Seneca Creek Greenway Trail in Gaithersburg MD on March 7, 2026 for a marathon or an extended 50K. Run single track parkland trails and choose to finish at the marathon or keep going to complete the 50K.
Sat 7 Mar 2026
50 kilometers Marathon

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Event overview

The MCRRC Seneca Creek Greenway Trail Marathon & 50K takes place on Saturday, March 7, 2026, in Gaithersburg, Maryland. The course uses the Seneca Creek Greenway Trail and parallel trails, including single-track sections through Montgomery County parkland. The race start and finish are at Seneca Creek State Park (Nuthatch Pavilion), 11950 Clopper Road, Gaithersburg, MD 20878. Participants may choose their final distance during the event by stopping at the finish for the marathon or continuing on to complete the 50K.

Entries and race goods

Events offered:

  • Marathon
  • 50K

Both events list an entry fee of $68 and are open to ages 18 and older. The listing notes that entry fees will increase after stated dates. Registered participants receive a custom race bib, a short-sleeved technical shirt, and a finisher's medal. Current MCRRC members are eligible for a $5 discount that is applied automatically at checkout when signed in. The event page provides directions and additional race information, including aid station and course logistics pages. Visit the organization's website for the most recent information.