Viper 300

MAR
8-14
2027
A multi distance trail event at Shelby Farms Park using a 33.4 mile loop with paved and dirt sections, staffed aid stations, and options from 25K up to 300 miles. Pacers, crew access rules, and drop bag locations are specified.
8-14 Mar 2027
300 miles 200 miles 100 miles 53 kilometers 25 kilometers

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Viper 300 at Shelby Farms Park

Viper 300 is a multi distance trail event held at Shelby Farms Park in Memphis, Tennessee. The event uses a primary loop of about 33.4 miles and offers multiple race distances.

Distances include:

  • 300 miles
  • 200 miles
  • 100 miles
  • 53K (night race)
  • 25K

The course mixes paved trails and dirt single track, passing lakes and wooded areas. Wildlife such as deer and a buffalo herd may be encountered on the route. The 25K follows paved trails for the opening and final sections with a central dirt loop, passing the Tour de Wolf aid station twice and running near parked cars around Mile 3 and Mile 9.5.

Aid stations are placed around the 33.4 mile loop. Key stations include an unmanned water stop near Mile 10.8, a crewed Tour de Wolf aid station with drop bag access near Miles 20.8 and 27.0, and the Hyde Lake start/finish aid station with crew access and drop bag support at loop completion. Some aid stations provide cots and sleep stations.

Rules address pacing, crewing, and equipment. Pacers are permitted for the 300, 200, and 100 mile distances with limits on number and duties; pacers may not carry a runner's gear. Drop bags are allowed only at specified aid stations. Live tracking is provided for the 300, 200, and 100 mile races. 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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