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POPULAR DISTANCES
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50K
50 Mile
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50K

The 50K is the entry distance into ultramarathon racing. It is mostly run on trail and hilly courses. Find a comprehensive list of 50Ks below.
5K
10K
Half Marathon
Marathon
Ultramarathon
50K
100K
Relay
50 Mile
100 Mile
15K
25K
20 Mile
1 Mile
Kids
Sprint
Olympic
Half Ironman
Ironman
10 Mile

upcoming races

Sisters Country 50K & Half Marathon
May 4, 2025
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Sisters
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Mt. Si Relay & Trail Runs
May 4, 2025
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Snoqualmie
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Tillamook Burn
May 9, 2025
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Portland
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Valkyrie Trail Race
May 10, 2025
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Colorado Springs
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Stumptown Trail Runs
May 24, 2025
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Portland
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Cape Mountain
May 31, 2025
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Florence
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Smith Rock Classic
May 31, 2025
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Terrebonne
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Echo Valley Trail Run
Jun 7, 2025
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Leavenworth
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Hiawatha Trail Run
Jun 8, 2025
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Coeur d’Alene
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Mary’s Peak Trail Run
Jun 14, 2025
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Blodgett
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Divide 50K
Jun 14, 2025
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Butte
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Flagstaff Extreme Big Pine Trail Runs
Jun 21, 2025
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Flagstaff
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Bears Ears Ultra
Jun 21, 2025
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Wild Woman Marathon, 50K Trail Run
Jun 21, 2025
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Trout Lake
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Alpine Solstice
Jun 21, 2025
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Bend
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Wy’east Wonder
Jun 28, 2025
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Mt. Hood
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Siskiyou Out Back
Jul 12, 2025
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Ashland
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Mt Hood Trail Runs
Jul 12, 2025
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Mt. Hood
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Silverton Alpine Runs
Jul 19, 2025
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Silverton
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Never Summer 100K/60K
Jul 25, 2025
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Fort Collins
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Pikes Peak Ultra
Jul 26, 2025
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Colorado Springs
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Volcanic
Aug 2, 2025
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Mt St Helens
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Wy'east Trailfest
Aug 9, 2025
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Mt. Hood
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Larrabee Lakes Trail Run
Aug 9, 2025
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Bellingham
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Six-O Trail Run
Aug 30, 2025
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Fort Worth
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