Viper 300
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Viper 100
The Viper 100 is a multi-distance trail race weekend held at Shelby Farms Park in Memphis, Tennessee. The event uses a 33.4 mile loop that mixes paved greenways and dirt trails, passing lakes, forests, and open parkland. Wildlife such as deer and distant buffalo may be visible from sections of the course. All distances finish at Hyde Lake Pavilion.
Distances offered
- 100 Miler
- 107K (66.8 miles)
- 53K
- 25K (approximately 15.5 miles)
The course layout includes four fully stocked aid station locations per loop: Bridge Aid Station, Refuge Aid Station, Tour de Wolf (TDW) Aid Station, and Hyde Lake Pavilion. Crew access is allowed at Refuge, TDW, and Hyde Lake; crew access is not permitted at the Bridge Aid Station. Drop bags are permitted at TDW and Hyde Lake. Parking is located at the Tour de Wolf Pavilion area, with runners passing crew and vehicles twice each loop.
Pacers are permitted only for the 100 Miler and 107K and may join after completing one full loop; pacers must follow event pacer rules and sign a waiver. Live tracking will be available for 100 mile and 100k runners.
Registration is non refundable and non transferable. Deferral credits are available on a sliding scale before the event according to published deadlines. Visit the organization's website for the most recent information.
