Heartland - Cassoday, KS
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Heartland - Cassoday, KS
Heartland takes place October 9–11, 2026 in Cassoday, Kansas and offers a range of ultra and road distances across rural Flint Hills terrain. Races are run on largely backcountry gravel and dirt roads with under one mile of paved surface in Cassoday.
- 125 mile
- 100 mile
- 100K and Teter Rock 100K
- 50 mile
- Marathon (point to point with a 1.2 mile loop in Cassoday)
- Teter Rock half marathon
- Heartland 100 4 person relay (nine legs totaling 100 miles)
The courses traverse open range and tallgrass prairie with rolling hills; the 100 mile route includes about 6,000 feet of climb. The 100 mile course is primarily out and back; some formats include a 30 mile loop to Eureka. Aid support varies by distance: the 100 mile has 22 aid stations (the 125 mile includes an additional roving aid option); the 100K, 50 mile, and marathon have fewer manned stations. Crew access and drop bag locations are provided at multiple designated points for each distance.
Pacers are permitted from the Matfield Green aid station to the finish and must be on foot. Awards include buckles for the 125 mile, 100 mile, and 100K, plus finisher medals and overall awards by gender. The marathon has a shuttle to return participants to Cassoday. Visit the organization's website for the most recent information.
