Heartland - Cassoday, KS
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Heartland, Cassoday KS : October 9–11, 2026
Heartland is a multi-distance ultrarunning event centered in Cassoday, Kansas, on rural roads through the Flint Hills tallgrass prairie. Courses use mostly backcountry gravel and dirt roads; the 100-mile course includes less than one mile of paved surface and about 6,000 feet of climb.
Distances
- 125 mile with a 30-mile loop detour near Eureka
- 100 mile out-and-back on gravel roads with 6,000 feet of climb
- 100K out-and-back to Texaco Hill aid station
- Teter Rock 100K out-and-back via Teterville rd aid station
- 50 mile out-and-back to Teterville rd aid station
- Marathon point-to-point with a 1.2 mile Cassoday loop
- Half marathon out-and-back to Teter Rock
- 100-mile four-person relay nine legs, teams of four; limited entries first year
Aid and crew support vary by distance: the 100-mile course has 22 aid stations and nine crew-access locations; the 125-mile course adds a roving aid station. Drop bag and crew access counts differ by event. Pacers are permitted from Matfield Green aid station to the finish for applicable distances.
Runners must follow published rules about numbers, hydration devices, littering, crew behavior, and safety around livestock. Time limits apply by distance. The setting includes long open-range sections with limited roadside shelter and variable autumn weather. Visit the organization's website for the most recent information.
