Backyard Ultra in New Town (Oct 10 8:00AM)

Sat, Oct 10, 2026, 4:00 AM CDT

Location: 3246 Rue Royale st, Saint Charles, MO 63301
Featured distance: 4.17 Miles
Type: Run

Race feel

Push your limits in this unique backyard ultra, where every loop supports critical research for children with the rare genetic disease, MSMDS.

Competitive
Quirky
For a Cause

The Second Annual Backyard Ultra in New Town, Missouri, offers a unique 'last person standing' challenge. Runners complete a 4.17-mile loop each hour, with the event continuing until only one remains. A portion of the race proceeds, along with half of the money jar contributions, directly supports vital research for Multisystemic Smooth Muscle Dysfunction Syndrome (MSMDS), an ultra-rare genetic disease. This event is dedicated to Braxley, a young warrior niece of two racers, making each loop a meaningful step towards hope and discovery.

What to expect

Tackle a 4.17-mile loop each hour in a 'last person standing' format.
Set up your personal area for refueling, relaxing, and connecting with fellow runners.

From the organizer

The Second Annual Backyard Ultra marathon in New Town, Missouri will be held October 10th, 2026. Event registration will start at 7:00 AM, and the race will begin at 8:00 AM. The event will consist of a 4.17 mile loop and runners will have up until the next hour to be back in time to start the next loop. Registration for the event is $25 to cover costs, but to run each loop you must put a dollar into a race jar. The winner of this last person standing race will receive half of the jar, while the other half will be donated to MSMDS charity. Each participant that completes a lap will be given a custom NewTown Ultra DNF token.

Race location will be at the amphitheater in New Town in Saint Charles, Missouri. https://maps.apple.com/place?coordinate=38.836652,-90.494863&name=Marked%20Location&map=h This is where registration and start of each lap will be. There is an area with bathrooms and where runners can set up their area in between laps for refueling, relaxing, and making friends. There are multiple restaurants, coffee shop, ice cream shacks around that will have food available as well. The race will have volunteers staffed until 12pm Sunday, October 11th which would mean ~116.8 miles! If two runners are still going at that time, accommodations will be made to keep the race going since we would love to see two make it that far!

With the $25 covering the cost of coins and other race related expenses, we ask you consider donating to a cause that is near and dear to our hearts. Multisystemic Smooth Muscle Dysfunction Syndrome (MSMDS), an ultra-rare genetic disease affecting only 70 patients worldwide, mostly children.

Braxley is who we are running for and she is two of our racers amazing warrior niece. Braxley is a fun, loving and sassy 3 year old. She enjoys coloring, tumbling and playing with her dogs, brother and cousins. Braxley suffers from a rare disease called Multisystemic Smooth Muscle Dysfunction Syndrome, or MSMDS for short. A life threatening condition caused by mutations in the ACTA2 gene.

MSMDS is an ultra-rare genetic disorder that affects the smooth muscle cells throughout the body--including those in the vascular, respiratory, gastrointestinal, cardiovascular and urinary systems. Children born with ACTA2-related MSMDS often face serious, debilitating complications such as early-onset strokes, aortic dilation with risk for dissection or rupture at a young age, periventricular white matter lesions, chronically dilated and fixed pupils, chronic interstitial lung disease, hypotonic bladder and recurrent urinary infections. Many do not survive past early childhood. For those who do, the journey is filled with constant medical intervention, high-risk surgeries and a deep uncertainty about the future.