The Eternal Damnation Backyard

APR
18
2026
Read all about the The Eternal Damnation Backyard on 18 Apr 2026 in Sylvan Grove.
Sat 18 Apr 2026
Loop: 6.7056 Kilometers (...

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About the race

Location: Wilson State Park (Hell Creek area) outside Dorrance, KS, with start/finish in the Switchgrass Mountain Bike Trail parking lot. The course begins with 3/4 mile of pavement before switching to 100% single-track along Wilson Lake, touted as Kansas’ clearest lake, and the Switchgrass Trail, rated among the state’s best and EPIC-certified. Each loop is 4 miles 880 feet (6.7056 km) and must be completed within one hour; laps start hourly in a last-man-standing Backyard Ultra format.

It’s self-supported, with swag (shirt, finishers plaque) and special awards; 2 crew members allowed; water and endurance fuel provided. First race in Ultraverse Kansas Slam. Visit the organization's website for the most recent information.

7 km
Loop: 6.7056 Kilometers (4 Miles 880 Feet)

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