Run Rabbit Run
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About the race
Run Rabbit Run is a pair of trail ultramarathons held in Steamboat Springs, Colorado each September. The event offers two main distances and runs on mountainous singletrack that crosses the Continental Divide and includes sections on Buffalo Pass, Emerald Mountain, Mount Werner, and Rabbit Ears Mountain. The course uses national forest trails and operates under a special uses permit on the Routt National Forest.
The event includes:
- 100 mile race with a field limited to 450 entrants (100 Hares, 350 Tortoises).
- 50 mile race with a field limited to 200 entrants.
The 100 mile race features a multi-hundred thousand dollar prize purse, with a record award structure announced for upcoming editions including a $350,000 total purse and $100,000 awards to the first-place woman and man. The races began as a charity effort in 2007; the 100 mile edition started in 2012. Since 2007 the event has donated nearly $1,000,000 to nonprofits, and in 2026 it donated over $105,000 to 20 northern Colorado charities.
Racing uses marked trails but is not a closed course; hikers and mountain bikers may also use the route. The organizer provides course sweeps to account for runners. Walking or hiking poles are permitted with caution on singletrack. A post race gathering with food is held near the finish. Visit the organization's website for the most recent information.
