Viper 300

MAR
8-14
2027
A multi-distance ultrarun at Shelby Farms Park on a 33.4-mile loop, with crewed aid stations, drop bags, pacer support for the longest distances, live tracking, and distance-specific finisher awards.
8-14 Mar 2027
300 miles 200 miles 100 miles 53 kilometers 25 kilometers

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Viper 300 : Shelby Farms Park, Memphis, TN

The Viper 300 is a multi-distance ultrarunning event held inside Shelby Farms Park in Memphis, Tennessee. The event is built around a 33.4-mile loop that combines paved greenways and dirt trails through lakes, woods, and open parkland. Wildlife such as deer and buffalo may be visible from the course. All distances use Hyde Lake as the main start/finish hub.

Distances:

  • 300 Mile
  • 200 Mile
  • 100 Mile
  • 53K (Friday night)
  • 25K

Support is provided each loop via several aid stations: Bridge Water, Refuge, Tour De Wolf (TDW), and Hyde Lake. TDW and Hyde Lake are fully crewed with drop bag and sleep-station options; drop bags are allowed at TDW and Hyde Lake. Parking is located at the TDW Pavilion area so runners pass their vehicles twice per loop. Live tracking will be available for the 300, 200, and 100-mile fields.

Race rules include no dropping down in distance, no muling, crew assistance only at fully manned aid stations, and completion on foot only. Pacers are permitted for the 300, 200, and 100-mile distances with specific pickup and conduct requirements; one pacer may accompany a runner at a time. Packet pickup and race merchandise are handled at Hyde Lake Pavilion in the days leading up to and during race week.

Each distance receives distance-specific swag and custom finisher awards, including buckles and medals for longer distances. Visit the organization's website for the most recent information.

300 mi
300 Miler
200 mi
200 Miler
100 mi
100 Miler
53 km
53k
25 km
25k
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