Viper 300

Viper 300 : Shelby Farms Park, Memphis, TN

The Viper 300 is a multi-distance ultramarathon week held in Shelby Farms Park, with all courses based on a 33.4 mile loop that combines paved greenways and dirt trails. The event includes the following distances:

• 300 Miler
• 200 Miler
• 100 Miler
• 53K
• 25K

The loop passes lakes, woods, and open parkland; wildlife such as deer and buffalo may be visible from the course. All distances finish at Hyde Lake, which serves as the main start/finish hub and central aid station. Parking is staged at the Tour De Wolf (TDW) Pavilion area so runners pass by vehicles twice each loop for easy crew access.

Aid station support is provided on each loop with a mix of unmanned and fully manned stations. Drop bags are allowed at Hyde Lake and TDW aid stations. Crew access is permitted at fully manned stations, with Refuge station access varying by day. Live tracking will be available for the 300, 200, and 100 mile fields.

Pacers are allowed for the 300, 200, and 100 mile races with specific rules on when pacers may join, bib pickup, and what pacers may carry. Registrations are non-refundable and non-transferable; deferral and credit policies are set by the organizer.

Race-specific swag and finisher awards are provided for each distance. Professional race photography will be offered to runners. Visit the organization's website for the most recent information.

Events nearby