Last Mamba Standing
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Last Mamba Standing - October 23, 2027
Last Mamba Standing is an official Backyard Ultra held on Saturday, October 23, 2027, in Eads, Tennessee, on privately owned property just outside Memphis. The event is hosted by Mamba Trail Runners and has official Bronze Ticket status within the Road to Big's Backyard Ultra pathway. The field is limited to 50 runners.
The format requires each runner to complete a 4.167 mile loop within one hour and to start the next loop at the top of the hour. Runners repeat the loop hour after hour until only one runner remains; the final winner completes one loop alone to become the Last Mamba Standing. There is no predetermined finish line, distance, or overall time limit.
The course runs on roughly 200 acres of wooded trails with rolling terrain and a scenic lake. The loop includes approximately 225 to 250 feet of elevation gain per loop. The event will expand livestream coverage with live commentary and runner updates.
Registration for most spots uses a free lottery. The lottery opens October 31, 2026 at 6:00 PM Central Time, closes November 14, 2026, and a live drawing will occur the evening of November 15. The top ten finishers from 2026 receive invitations; the remaining positions are intended to be filled through the lottery, targeting 20 men and 20 women. Entering the lottery is free; runners are charged only if they receive and accept an invitation.
Last Mamba Standing is primarily self supported. A limited aid station is available as backup; runners should plan to provide their own food and hydration. Crews and on site camping from the Friday before race day are permitted. There are no refunds or deferrals. All registered runners receive official race swag, and awards include the overall champion plus top overall male and female recognitions. Visit the organization's website for the most recent information.
