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

OAT Run (Olympic Adventure Trail Run)

Apr 11, 2026

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Napa Valley Endurance Run

Apr 12, 2026

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Rattler Trail Races

Apr 18, 2026

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Colorado Springs

Apr 18, 2026

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Apr 18, 2026

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The Canyons Endurance Runs

Apr 23, 2026

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Thelma & Louise Women's Half Marathon

Apr 25, 2026

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Greenland Trail Races

May 2, 2026

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Colorado Springs

Sisters Country 50K & Half Marathon

May 3, 2026

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Valkyrie Trail Race

May 9, 2026

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Colorado Springs

Grizzly Peak Trail Run

May 9, 2026

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May 16, 2026

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Silver State 50/50

May 16, 2026

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Stumptown Trail Runs

May 23, 2026

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Leavenworth Trail Fest

May 23, 2026

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Smith Rock Classic

May 30, 2026

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Echo Valley Trail Run

May 30, 2026

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Scout Mountain Ultras

Jun 5, 2026

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The Kan Mountain Ultra Trail Race

Jun 6, 2026

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Vashon Island Ultramarathon

Jun 6, 2026

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Hiawatha Trail Run

Jun 7, 2026

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Coeur d’Alene

Mary’s Peak Trail Run

Jun 13, 2026

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McKenzie River Trail Run

Jun 13, 2026

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Kettle Moraine 100

Jun 13, 2026

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Wild Woman Marathon, 50K Trail Run

Jun 19, 2026

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Alpine Solstice

Jun 20, 2026

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Flagstaff Extreme Big Pine Trail Runs

Jun 20, 2026

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Bears Ears Ultra

Jun 20, 2026

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Tiger Peak Challenge

Jun 20, 2026

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Wy’east Wonder

Jun 27, 2026

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Siskiyou Out Back

Jul 11, 2026

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Mt Hood Trail Runs

Jul 11, 2026

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Silverton Alpine Runs

Jul 18, 2026

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Jul 19, 2026

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Speedgoat Mountain Races

Jul 23, 2026

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