Nebraska · 100-mile ultra
Heartland 100 Ultramarathon
Heartland 100 Ultramarathon is a 100-mile ultra event held in Cassoday, Nebraska. It was last held on October 10, 2026 and is usually run in October; the next date hasn't been announced yet. About 300 runners take part across all distances.
- Usually held
- October
- Location
- Cassoday, NE
- Field size
- ~300 runners
Race details
- Last held
- October 10, 2026
- Usually held in
- October
- Location
- Cassoday, Nebraska
- Distances
- 100-mile ultra
- Field size
- About 300 runners
- Course
- Mountainous
- Registration
- ultrasignup.com
- Official website
- heartland100.com
Registration, course & weather
- Registration status
- Registration status as last checked October 5, 2026: closed
- Start time
- 6:00 AM CDT
- Course profile
- Out-and-back course; Mostly road, some trail; 6000 ft gain (official course data); Not USATF certified
About the Heartland 100 Ultramarathon
The Heartland 'Spirit of the Prairie' ultramarathon crosses the Flint Hills tallgrass prairie on remote gravel roads with less than a mile of pavement, offering 100-mile, 50-mile and shorter options. (Note: this established race is hosted in Cassoday, Kansas, not Nebraska.)
Rankings and notes
- Rankings and awards
- Western States 100 and Hardrock 100 qualifier; classic Midwest prairie ultra run almost entirely on remote gravel roads
- Notes
- Challenging ultra race
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Heartland 100 Ultramarathon: common questions
- When is the Heartland 100 Ultramarathon?
- The next date hasn't been announced in the listing yet. The race is usually held in October. Check the organiser's website for the official date.
- Where is the Heartland 100 Ultramarathon held?
- In Cassoday, Nebraska.
- What distances does the Heartland 100 Ultramarathon offer?
- 100-mile ultra.
- How many people run the Heartland 100 Ultramarathon?
- About 300 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Heartland 100 Ultramarathon?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Heartland 100 Ultramarathon?
- Registration status as last checked October 5, 2026: closed.
- What time does the Heartland 100 Ultramarathon start?
- 6:00 AM CDT.
- What is the course like at the Heartland 100 Ultramarathon?
- Out-and-back course; Mostly road, some trail; 6000 ft gain (official course data); Not USATF certified.
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