Cobra Den Winter Series
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Cobra Den Winter Series
The Cobra Den Winter Series is a four-race trail series held at Shelby Farms Park in Memphis, TN and organized by Mamba Trail Runners. The series runs from December 12, 2026 to February 27, 2027 and alternates between the Wolf River Trails and the Tour de Wolf trail systems.
There are two series formats with the following race distances:
- Short Series: 5k, 10k, 5 miler, 7 miler
- Long Series: 10k, 8 miler, 10 miler, half marathon
Participants earn points at each event toward an overall series championship. Age group awards are presented at every race in the divisions 0–9, 10–19, 20–29, 30–39, 40–49, 50–59, 60–69, and 70+. Overall male and female awards are also given.
A Virtual Series option allows people to complete each race distance from any location during the corresponding race weekend. Virtual results are recorded separately and are not eligible for the event awards. Virtual entrants receive an official Cobra Den Winter Series t shirt, one virtual race bib, and a four-piece Snowman medal; virtual swag is mailed before the first race.
Registration closes on December 10. Entry fees are listed between USD 110.00 and USD 173.90. The event policy states there are no refunds, deferrals, race credits, or transfers. Race shirts and medals will not be mailed to participants who do not attend and any remaining shirts will be donated.
The organizer may delay, postpone, or cancel races for severe weather or unsafe trail conditions and will attempt to reschedule when possible. Visit the organization's website for the most recent information.
