Viper 300
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Viper 100 at Shelby Farms Park
The Viper 100 is a multi-distance endurance event held inside Shelby Farms Park in Memphis, Tennessee. The course uses a 33.4 mile loop that combines paved greenways and dirt trails, running past lakes, forests, and Hyde Lake where the event is based. Runners will pass their vehicles twice each loop when using the Tour de Wolf Pavilion parking area.
Distances offered:
- 100 Mile
- 107K (66.8 miles)
- 53K
- 25K (about 15.5 miles)
The race features four fully stocked aid stations on the loop: Bridge, Refuge, Tour de Wolf (TDW), and Hyde Lake Pavilion. Crew access is allowed at Refuge, TDW, and Hyde Lake Pavilion but not at Bridge. Drop bags are permitted at TDW and Hyde Lake Pavilion. The Hyde Lake Pavilion serves as race headquarters and finish area and includes a sleep station for longer distances.
Pacers are permitted for the 100 Mile and 107K after one full loop; only one pacer may accompany a runner at a time and pacers must follow specific rules including signing a waiver and not carrying supplies for the runner. Live tracking will be enabled for 100 mile and 100k participants.
Registrations are non refundable and non transferable. Deferral credit is available on a tiered schedule with no credit after March 1, 2027. Packet pickup is scheduled at the Hyde Lake Pavilion on the day before race week. Visit the organization's website for the most recent information.
