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10 running events in Gaithersburg, Maryland

From big races to Saturday morning group runs—find running events and connect with the local endurance sports community.

  • MCRRC Seneca Creek Greenway Trail Marathon & 50K [runsignup.com]

    Sat, Mar 07, 2026 at 7:30 AM

    Description

    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...

    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).

    ! DETOUR ALERT ! Due to the bridge on the Mink Hollow Trail being under reconstruction, there will be a detour on both the outbound and inbound course routes. Please refer to the map under the "Course & Logistics" tab for a map showing the detour. The trail, including the detour, will be marked on race day.

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

    26.2 Miles 50k Marathon Run Trail

    Gaithersburg, Maryland, 20878, United States
    OpenStreetMap Google Maps
  • Breeze Thru The Trees 5k [breezethruthetrees.org] [Register at runsignup.com]

    Sun, Mar 22, 2026 at 8:30 AM

    Description

    Breeze Thru the Trees is a 5k cross country run winding through a lush tree nursery in Montgomery County’s Agricultural Reserve.

    Proceeds from Breeze Thru the Trees will benefit the Montgomery County...

    Breeze Thru the Trees is a 5k cross country run winding through a lush tree nursery in Montgomery County’s Agricultural Reserve.

    Proceeds from Breeze Thru the Trees will benefit the Montgomery County Children’s Opportunity Alliance, which is working to build an equitable, accessible, high-quality, and sustainable early childhood system that narrows disparities and puts all young children on a path to reach their greatest potential.

    Grounded in collaboration and accountability for each other, the alliance convenes stakeholders across all sectors in order to forge a thriving, justice-based system at the county level. The Children's Opportunity Alliance believes that when the smallest among us flourish, we all experience well-being.

    Please join us on March 22nd, 2026 for Breeze Thru the Trees, a 5k race and fun run held on Ruppert Nurseries’ 500 acre tree farm in Laytonsville, MD.

    1 Miles 5k Fun Run Run

    Airpark Road, Gaithersburg, Maryland, 20882, United States
    OpenStreetMap Google Maps
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