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.

upcoming races

SD50 / Trail Marathon / Half Marathon

Jan 11, 2025

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Perpetua Fatass 2025

Jan 11, 2025

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Bristow Trail Run

Feb 2, 2025

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Hagg Mud 50K/25K

Feb 15, 2025

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Feb 22, 2025

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Lord Hill Trail Run

Feb 22, 2025

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Dos Senderos Trail Race

Mar 1, 2025

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Mar 8, 2025

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Chanoko 50K, 31K and 5-Mile Trail Runs

Mar 8, 2025

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Mar 15, 2025

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Behind the Rocks Ultra

Mar 22, 2025

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Mar 22, 2025

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VALENCIA Trail Race

Mar 22, 2025

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Shotgun Trail Blast

Apr 5, 2025

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Ancient Lakes 50M/50K/25K/10K

Apr 5, 2025

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Gorge Waterfalls

Apr 11, 2025

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OAT Run (Olympic Adventure Trail Run)

Apr 12, 2025

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Rattler Trail Races

Apr 19, 2025

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Colorado Springs

Apr 19, 2025

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Apr 19, 2025

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The Canyons Endurance Runs

Apr 25, 2025

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McDonald Forest 50K

May 3, 2025

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Sisters Country 50K & Half Marathon

May 4, 2025

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Mt. Si Relay & Trail Runs

May 4, 2025

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May 9, 2025

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