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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

upcoming races

Valkyrie Trail Race
May 10, 2025
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Colorado Springs
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Cape Mountain
May 31, 2025
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Florence
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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 Run
Jun 14, 2025
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Eugene
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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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Siskiyou Out Back
Jul 12, 2025
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Ashland
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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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Six-O Trail Run
Aug 30, 2025
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Fort Worth
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Backcountry Rise
Sep 6, 2025
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Mt St Helens
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The Rut Mountain Runs
Sep 12, 2025
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Big Sky
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TransRockies Golden Ultra
Sep 12, 2025
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Priest Lake Marathon and 50K
Sep 13, 2025
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Sandpoint
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Mammoth Trail Fest
Sep 19, 2025
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Mammoth Lakes
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Ultra Fest 100M, 100K, 50M, 50K
Sep 20, 2025
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Three Sisters Skyline
Sep 20, 2025
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Sisters
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Perpetua Coast
Oct 4, 2025
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Yachats
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Angel's Rest
Oct 11, 2025
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Portland
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