Push your Limits.
Mamba Trail Runners
Memphis based trail running races built for all levels-welcoming runners from across the country.
We create challenging, well organized events that push limits and bring people together.
Hill repeats are never easy—but that’s the point. We train on the hills because they challenge us, push us, and make us stronger.
Running is a lot like life. Some days are smooth, some days are an uphill battle. You keep showing up, keep climbing, and keep moving forward.
See you at the top.
08/17/2026
Before they believe in themselves, sometimes you have to believe in them first. Then send them out to prove it
Thanks to Diggs for the shoutout about Mamba and Viper at the Last Soul Ultra in Germany.
08/16/2026
🏆 2026 COBRA DEN TRAIL SERIES — FINAL IN-PERSON SERIES RANKINGS!
Here are the final Cobra Den Trail Series rankings for both the Short Series and Long Series!
These rankings include only runners who registered for the full Cobra Den Trail Series and completed all four races in person. They do not include runners who registered for the races individually. I’ll put together that list later.
There are some really impressive total times and average paces on these lists, especially considering what everyone battled this summer. Four races. Four different distances. Memphis heat and humidity. And some seriously hot race mornings!
🏆 Congratulations to our 2026 Cobra Den Trail Series Champions!
Short Series Champions
🐍 Riley Spahn — Male Champion
🐍 Cheyenne Terrell — Female Champion
Long Series Champions
🐍 Jacob Reeves — Male Champion
🐍 Sarah Webb — Female Champion
Congratulations to all four of our champions on an outstanding series!
Now comes the fun part…
❄️ THE COBRA DEN WINTER SERIES!
We’ll be running the same courses and same distances, giving you a great opportunity to see what you can do when we trade the summer heat for winter temperatures.
This gives everyone some new goals to chase!
Long Series: Can you break 6 hours across all four races? How about sub-5 hours?
Short Series: Can you break 3 hours across all four races? How about sub-2 hours?
And if you’re already near those marks, set your own target and see just how much faster you can run these courses in cooler conditions.
It’s going to be really interesting comparing your summer total time and average pace against your winter total time and average pace.
Congratulations to everyone who completed the entire 2026 Cobra Den Trail Series! Four races down — now let’s see what you can do this winter.
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Memphis, TN
38002