Ultramarathon Dog Friendly Races

Dogs are allowed to run with you but the race director asks that you start in the back and allow other runners to spread out. Choose from the 10K, 25K or 50K race.
The Greenhorn Ranch Trail Run welcomes leashed dogs in all distances including a 5K, 10K, 25K and 50K. This is a looped course on dirt, forest roads.
The Zoomies 50K also offers a 5K, 10K & 15K option. The race goes around a 1.57-mile loop so you complete it 20 times for the 50K. Dogs are welcome and the course will feature rescue animals available for adoption.
Salt Flats Endurance Run
The Salt Flats Endurance Run in an ultramarathon that allows dogs in all distances, including the 50K, 50 miler and 100 miler. You can register your dog to run the entire race and they will essentially be treated as a human runner.
Hell Creek 100 miler
Well-behaved, leashed dogs are allowed to run in all three races, the 100-miler, the 100K and the 20-miler. They must not bother any people, dogs or wildlife. The course is single track on 20-mile loops. Anyone who lets their dog off leash will be disqualified.
Pony Express Trail 100
This course is all on dirt roads along the historic Pony Express. Crews are required. Choose from a 100 mile out and back or the 50 miler. You are welcome to have your dog run with you.
Deception Pass 50K
Well-behaved, leashed dogs are welcome on both the Deception Pass 50K and 25K courses. There is also a 1K Fun Run. This area is known for its rugged coastlines, cliffs and dense forests. There are no mountains or long climbs in this race.
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