100Ks in the USA on Sundays

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1
Past Date
Dec 31, 2023
Sunday
Grit Ultra Endurance Challenge
100M, 100K, 50M, 50K run | last man standing | 100M, 100K, 50M, 50K relay
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West Columbia, TX
Brazoria County, TX
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2
Past Date
Apr 28, 2024
Sunday
Jack Bristol Lake Waramaug Ultra Races
100K, 50M, 50K run
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New Preston, CT
Litchfield County, CT
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3
May 26, 2024
Sunday
High Hope Endurance Run
100K, 50K, 25K, 10K, 5K trail run
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Glen Rose, TX
Somervell County, TX
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4
Oct 6, 2024
Sunday
Black Forest Ultra 100K
100K trail run
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Hyner Run State Park, PA
Clinton County, PA
details update save claim feature

For the love of all that Is good And moisture wicking...

Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.

ALWAYS visit the race's website for the most complete and accurate race information.