The Blood Run - Lennox, SD

Lennox, United States • 4-6 Sep 2026

The Blood Run - Lennox, SD

The Blood Run is a timed endurance event held on a 1.5 mile loop around an organic vegetable farm south of Lennox, South Dakota. The event offers multiple time-based races on the same loop layout, run repeatedly for the selected duration.

Distances and formats:

  • 48 hours
  • 36 hours
  • 24 hours
  • 24 hour 4-person relay
  • 12 hours
  • 6 hours
  • 3 hours

The course follows a border around acres of vegetable fields. It is mainly well-traveled dirt with some pasture sections where miniature animals reside. Elevation change is minimal and the exact trail route can vary depending on summer rainfall and trail conditions.

Event amenities include camping spots for runners and crews and one fully stocked aid station located on the loop. The aid station includes flush toilets. Crews may support runners from a campsite or from a vehicle and can spend time on the farm during the event.

Registration closes on Thu, Sep 3 at 11:59 PM CT. The event takes place at a farm property near Lennox, providing a rural, farm-based setting for the timed races. Visit the organization's website for the most recent information.

Race information

36 Hour
24hrs
24 Hour 4 Person Relay
12hrs
6hrs
48hrs
3hrs
Visit the organization's website for the most recent information.
Trail runs nearby

Trail ultramarathon at Great Bear Ski Valley near Sioux Falls, SD offering 20k, 30k and 50k on a 10k loop with about 1200 ft climb per loop. Multiple loops make each distance and an aid station is available at the loop start area.

605 Trail Fest brings three trail distances to Good Earth State Park in Sioux Falls on August 15, 2026, including an 8 mile, a 4.5 mile and a 1 mile youth course. Packet pickup is scheduled the day before.

Trail races in Big Sioux Recreation Area near Brandon, SD, with 5-mile and 2-mile options plus a free kids race. Courses mix paved and dirt trails through prairie, woods and a bluff; routes may change if heavy rain affects the floodplain.

Newton Hills Trail Race in Canton, SD on October 10, 2026 features 2 mile and 6 mile courses through Newton Hills State Park with chip timing, age-division series points, and race-day park permit requirements.

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