Last Mamba Standing

SEP
26
2026
A Backyard Ultra in Eads, TN where runners repeat a 4.167 mile loop each hour until one remains. The race uses private, purpose-built trails, offers primitive camping, minimal on-course supplies, and awards a single champion.
Sat 26 Sep 2026
4 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Last Mamba Standing

Last Mamba Standing is an official Backyard Ultra event held on private land in Eads, TN on September 26, 2026. The format follows a true last runner standing structure: runners complete a single loop of 4.167 miles, one start every hour, and any runner who misses the cutoff is removed from the race.

The course uses purpose-built trails that have not previously hosted races. Terrain includes rolling hills, flowing singletrack, and natural, undeveloped sections through a quiet, remote setting with local wildlife. The event emphasizes consistent, repeated laps rather than outright speed.

Organizers will offer primitive camping the night before the race, with spaces near the start/finish area and the lake. Porta potties and hand-washing stations will be available. Campers must bring their own food, water, and camping supplies; both personal tents and 10x10 canopy tents are permitted. A communal evening around a fire and barn will provide an informal gathering for participants.

On-course support is minimal. The event will supply water, Tailwind, and basic trail snacks such as cookies and crackers; runners are responsible for any additional nutrition, gear, or supplies they require.

Awards include a single champion award for the final runner, finisher medals for those who complete at least one lap, and a race shirt for every registered runner. The event has a no refunds and no deferrals policy. Visit the organization's website for the most recent information.

4 mi
Backyard Ultra Loop
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.