Skip to main content
Date:
Sun, May 24, 2026 at 8:00 PM – 7:59 AM
Location:
10702 Harley Road
Lorton, Virginia
22079
United States
OpenStreetMap Google Maps
Links:
new.vhtrc.org Register at runsignup.com
Tags:
50 Miles Run Ultra

New this year: We are increasing the registration fee to $15 to help cover expenses for the race. Since we are charging a fee this year, note that you will not be expected to bring any food or beverages to share. We will be providing food, water / ice, and Gatorade at the start / finish area. Please bring any additional food or beverages that you anticipate needing during the race for your personal use.

The backyard format is based on Lazarus Lake’s Backyard runs. Runners have one hour to complete the 4.167-mile course. Runners must be in the corral at the top of the next hour ready to start the next loop, or they’re out.

In addition to being a challenging run, Furbutt's After Dark 12-hour Backyard is also a great way to experience the backyard format. This is an excellent opportunity to run your first marathon, 50K or 50-mile distance because the backyard format forces you to rest early and often, which can help you run a longer distance than you thought possible. Please note that to participate in this event, you will need to follow backyard rules:

Lap Distance: Each lap is 4.167 miles (6.706 kilometers). A completed lap is denoted as 1 Yard. This distance ensures that running 12 laps in 12 hours equals 50 miles.

Time Limit per Lap: Runners must complete each lap within one hour. Any remaining time within the hour can be used to rest, eat, hydrate, or prepare for the next yard.

Start of Each Lap: Yards begin every hour on the hour. Runners who fail to start at the exact time are eliminated.

No Pacing or Assistance on Course: Runners must complete laps without personal aid (one common aid station will be at start / finish area).

Crew support will only be allowed between laps at the start/finish area.

Course Rules: Runners are responsible for monitoring their hydration and should carry a handheld or hydration vest as appropriate for weather conditions. Runners must wear a reflective/light vest and carry a light or headlamp after dark.

Elimination: Failing to finish a lap within the hour results in elimination OR runners who quit voluntarily or miss the start of a lap are also eliminated.

Winner: The last runner standing must complete their final lap solo to be declared the winner and in this race, there may be multiple runners who run all 12 yards. All others technically receive a DNF ("Did Not Finish") designation.

Safety: Runners are responsible for monitoring their physical condition, hydration level, and fueling. Organizers may intervene if a runner is deemed unfit to continue.

Note: This event is inspired by Lazarus Lake, for more information on backyard ultras check out his website https://backyardultra.com/.

More races nearby

  • Spring Backyard Burn Trail Run - Pohick Bay [ex2adventures.com] [Register at runsignup.com]

    Sun, Apr 12, 2026 at 9:00 AM

    Description

    The Spring Backyard Burn (SBYB) is a series of 5 and 10 mile trail running races held on some of the best trail networks in the Northern Virginia Area. All the courses include a mixture of forested...

    The Spring Backyard Burn (SBYB) is a series of 5 and 10 mile trail running races held on some of the best trail networks in the Northern Virginia Area. All the courses include a mixture of forested fire roads, twisty hiking trails, stream crossings, grassy fields, and minimal pavement.

    All race information including course maps, schedule, etc. can be found on the race website:

    https://ex2adventures.com/trail-running/spring-backyard-burn-trail-running-series/sbyb-pohick-bay-park/

    Situated on Gunston Cove and adjacent to Mason Neck National Wildlife Refuge and Gunston Hall, home of Founding Father George Mason, Pohick Bay is steeped in beauty and history. The trails are excellent, the water views are amazing, and bald eagle sightings are common. The moderately technical course includes tight single-track, wide open double-track, challenging climbs, and flowy descents. Don’t miss this awesome Backyard Burn course!

    Charity partnership

    During registration, you will have an opportunity to support a local non-profit Homestretch. The goal of the charity partnership is to first and foremost to raise awareness of the services Homestretch provides to families in our area. In addition, we hope to raise funds that will directly support their efforts. Please consider making a donation when you register.

    5.6 km from Lorton
    Henry G. Shirley Memorial Highway, Lorton, Virginia, 22079, United States
    OpenStreetMap Google Maps

    5.9 Miles 10.4 Miles Run Trail

  • Try Or Fail Spring Forward 10K, 5K, 1 Mile [runsignup.com]

    Sat, Apr 18, 2026 at 8:00 AM

    Description

    Come join us for the fifth annual Try or Fail Spring Forward races! The 1-mile course will be run on the Workhouse Arts Center property starting and ending at the baseball fields going out and back....

    Come join us for the fifth annual Try or Fail Spring Forward races! The 1-mile course will be run on the Workhouse Arts Center property starting and ending at the baseball fields going out and back. The 5K and the 10K races will both start from the Workhouse Arts Center as well, beginning on road and transitioning into the Cross Country Trail towards Giles Run before turning around to return to the Workhouse Arts Center. The grounds of the previous Lorton Reformatory have been repurposed by the Cultural Arts Center and houses famous pieces of art by local and renown artists which truly is a site to see during the year.

    Giving Back - Part of the proceeds for this event are going towards donating to the American Heart Association.

    Runners Receive - A Performance Event T-Shirt and a Race Medal if you're registered by March 28th. Runners will also be receiving a chip timed event. We will have some extra T-shirts for individuals who register after that date, but it will be as a first-come basis while supplies last.

    Allowed - Strollers and walkers are more than welcome to participate and join the event. Our goal here is to get everybody moving and to come together for a good cause while adding a fun atmosphere.

    Race Day Registration - There will be race day registration for individuals, but we ask you to arrive early enough before the race if you plan on using this option. This will allow us enough time to get you registered and ready to go, but T-shirts and Medals can't be guaranteed here as we are ordering prior to the event.

    For more information about Try or Fail, go here: https://www.tryorfail.com/

    5.1 km from Lorton
    9518 Workhouse Way, Lorton, Virginia, 22079, United States
    OpenStreetMap Google Maps

    1 Miles 5k 10k Run Trail Walk

  • OSG 5k & 10k [bishopsevents.com] [Register at raceroster.com]

    Sun, Apr 26, 2026 at 9:45 AM

    Description

    OSG is a Northern Virginia–based 501(c)(3) building inclusive communities where adults with developmental disabilities can live independently in affordable housing while staying connected to...

    OSG is a Northern Virginia–based 501(c)(3) building inclusive communities where adults with developmental disabilities can live independently in affordable housing while staying connected to neighbors and community life.

    We work alongside housing partners, service providers, and volunteers to help people transition into stable homes and then stay rooted there through consistent, meaningful community programming. Our model pairs housing with belonging — reducing isolation, strengthening neighborhoods, and ensuring that independence is sustainable.

    When you run, you help build communities where everyone has a place to call home.

    6.5 km from Lorton
    unnamed road, Fairfax County, Virginia, 22125, United States
    OpenStreetMap Google Maps

    5k 10k Run

  • Meadowood Mustang 5k [bishopsevents.com] [Register at raceroster.com]

    Sun, May 03, 2026 at 8:00 AM

    Description

    Come out and enjoy this scenic 5k starting at the Mustang Trailhead at the Meadowood Special Recreation Management Area. This a new course for 2026!

    80 m from Lorton
    Mustang Loop Trail, Fairfax County, Virginia, 22060, United States
    OpenStreetMap Google Maps

    5k Run Trail

  • Assist Pregnancy Center's Walk Run Ride for Life [runsignup.com]

    Sat, May 09, 2026 at 10:00 AM

    Description

    Details: Walk Run Ride for Life Event! The event will take place on Saturday, May 9th at 10:00 am at Occoquan Regional Park. Sign up to participate as a walker, runner, or bike rider—and then invite...

    Details: Walk Run Ride for Life Event! The event will take place on Saturday, May 9th at 10:00 am at Occoquan Regional Park. Sign up to participate as a walker, runner, or bike rider—and then invite others to sponsor you! Following event completion, stay for food, fun activities, prizes, and ministry stories as we celebrate LIFE together.

    Location: Occoquan Regional Park

    Address: The Pavilion at Occoquan Regional Park, 9751 Ox Rd, Lorton, VA

    • Additional Park Offerings
    • Fishing

    • Batting Cage

    • Boat & Kayak Rental

    • Hiking Trails

    • Brickmakers Cafe: Brickmaker's menu features a variety of items, including fries, burgers, salads, and more!

    Course:

    • The 1 Mile Family Stroll will occur on Occoquan Regional Park grounds. This event is perfect for families, strollers, and young children with bikes and all walkers. The course is an out-and-back course that starts and ends at the pavilion where we are gathering.

    • The 5k Run will occur on Occoquan Regional Park grounds. The course is an out-and-back course that starts and ends at the pavilion where we are gathering.

    • The Distance Cycle is a virtual event. Participants will pick their own course and complete their distance cycle by Saturday, May 9th. All participants are encouraged to join us at Occoquan Regional Park on Saturday, May 9th, to partake in our in-person event full of fun activities. Cyclists can bring their bikes with them to Occoquan for a leisure bike ride, but there is no set long-distance bike course on-site at the walk-run ride event.

    Registration: Make sure to register so you will receive your t-shirt and qualify to earn prizes.

    Fundraising Goal: Help raise $75,000 to support free medical services, mentoring, and parenting education for families facing an unexpected pregnancy in the DC region. Raise support through sponsors and/or make a donation yourself – BOTH support a great cause!

    Teams: Join a team and fundraise with your friends and church. On the first page of your registration, you can opt to join an existing team or create a new team.

    T-Shirts: Each registered adult or child participant who raises $50 will receive a t-shirt. Select your size when registering.

    Questions: Contact Stephanie Lindsay at development@assistcpc.org

    9.7 km from Lorton
    9751 Ox Road, Fairfax County, Virginia, 22079, United States
    OpenStreetMap Google Maps

    Run Trail Virtual Walk

More races nearby →

Local running shop, club, groups & event organizer

See all organizations →
Like Wikipedia, anyone can contribute. Sign up to add your local events.