Viper 300
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Viper 100
The Viper 100 is a multi-distance endurance event held inside Shelby Farms Park in Cordova / Memphis, Tennessee. The event uses a 33.4-mile loop that mixes paved greenways and winding dirt trails and passes lakes, forests, and open natural areas. The course layout brings every distance to a common finish at Hyde Lake.
Distances include:
- 100 Miler
- 107K (66.8 miles)
- 53K
- 25K (approximately 15.5 miles, combination of paved and dirt trails)
The race features four fully stocked aid stations per loop: Bridge (no crew access), Refuge (crew access), Tour de Wolf - TDW (crew access and drop bags), and Hyde Lake Pavilion (start/finish, crew access, drop bags, and a sleep station with cots and blankets). Parking is centered at the Tour de Wolf Pavilion aid area, where runners pass vehicles twice each loop for easy crew access. Live tracking is provided for the 100 mile and 100k fields.
Pacers are permitted for the 100 Mile and 107K after completing one full loop; one pacer at a time and specific pacer rules apply, including waiver and no muling. Registration is non-refundable and non-transferable; deferral credits are available on a sliding scale if requested before specified deadlines. Packet pickup is at Hyde Lake Pavilion the day before race weekend, with additional pickup available on race weekend. Visit the organization's website for the most recent information.
