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MCRRC Seneca Creek Greenway Trail Marathon

North Potomac, United States • 7 Mar 2026

Event overview

The MCRRC Seneca Creek Greenway Trail Marathon & 50K takes place on Saturday, March 7, 2026, in Gaithersburg, MD. The event is held at Seneca Creek State Park (Nuthatch Pavilion), 11950 Clopper Road, Gaithersburg, MD 20878. Registration is open for two event options.

Distances

  • Marathon
  • 50K

Course and entry details

The courses run on single-track trails along the Seneca Creek Greenway Trail and parallel trails. Marathon and 50K participants may choose their final distance during the race by stopping at the marathon finish or continuing to complete the 50K. Entry is open to ages 18 and older. The listed entry fee for each event is $68; the price increases after January 1, 2026. MCRRC members receive a $5 discount applied automatically at checkout when signed in.

What participants receive

All participants receive a custom race bib, a short-sleeved technical shirt, and a finisher's medal. Visit the organization's website for the most recent information.

United States Maryland North Potomac

Race information

Registration
50 km
50k
Marathon
Marathon
Visit the organization's website for the most recent information.
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