Run With the Horses Marathon
Run With the Horses Marathon climbs from Green River into Wyoming high desert, pairing wide-open wild-horse country with a River Festival finish.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 22, 2026.
Quick facts
- High-desert Wyoming marathon
- Expedition Island start
- Wild-horse country views
- River Festival race weekend
About the Run With the Horses Marathon
This Green River community race begins from Expedition Island and shares its weekend with the city's River Festival. The marathon remains distinct from companion half, 10K and 5K events.
Course
The road route climbs above Green River into exposed high-desert country before returning toward town. Elevation, long sight lines and limited shade make controlled effort important early.
Race-day weather
Mid-August in southwest Wyoming often starts cool, then becomes sunny, dry and windy. High-desert exposure can accelerate dehydration even when the air does not feel humid.
Past Run With the Horses Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, August 15, 2026 | Upcoming | — |
Run With the Horses Marathon FAQ
When is the Run With the Horses Marathon?
The 2026 Run With the Horses Marathon is on Saturday, August 15, 2026.
How do I register for the Run With the Horses Marathon?
You can register for the Run With the Horses Marathon at runnercard.com.
Send Marathon Scout an official race update
Send us confirmed dates, registration links, results, live tracking, or course changes. Every update is reviewed before it goes live.