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1,669 marathons found for Ultra marathon, United States. Keep the list broad first, then tighten the filters when a race looks realistic.





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United States
05DEC
ULTRA
2nd Island View - Endurance Run - 50km
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
3rd Small Town Christmas 34Hr - 34h
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
3rd Tower Tag Challenge - 8h
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
40th OTHTC High Desert 50K Ultra - 50km
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
4th Festivus 100 Miler Trail Run - 100mi
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
4th Festivus 35 Miler Trail Run - 35mi
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
4th Festivus 50 Miler Trail Run - 50mi
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
4th Krampuslauf 9h - 9h
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
5th Last Chance 50 km Ultra Race - 50km
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
6th The Backland Race - 18h
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
7th The Tennessee Mile 6 Hour Run - 6h
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
8th Anza Borrego Cuyamaca 50 Mile Run - 50mi
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
8th Shakori 40 Mile Running Festival - 40mi
United States
December 5, 2026 DEC
United States
05DEC
ULTRA
9th Perpetual Motion 6 Hour Race - 6h
United States
December 5, 2026 DEC
Kimbolton, Ohio, United States
05DEC
ULTRA
Bigfoot
Kimbolton, Ohio, United States
December 5, 2026 DEC
Shepherdsville, Kentucky, United States
05DEC
ULTRA
Crooked Creek Ultra Trail Race
Shepherdsville, Kentucky, United States
December 5, 2026 DEC
Florida, United States
05DEC
ULTRA
Daybreak 76® Panama City Beach Marathon
Florida, United States
December 5, 2026 DEC
California, United States
05DEC
ULTRA
Death Valley Trail
California, United States
December 5, 2026 DEC
Triangle, Virginia, United States
05DEC
ULTRA
Devil Dog Ultras
Triangle, Virginia, United States
December 5, 2026 DEC
Arkansas, United States
05DEC
ULTRA
Fayetteville Half Marathon
Arkansas, United States
December 5, 2026 DEC
middleburg, Florida, United States
05DEC
ULTRA
Festivus 100/50 Miler Trail Run
middleburg, Florida, United States
December 5, 2026 DEC
Farmville, Virginia, United States
05DEC
ULTRA
Freight Train 100k/50k
Farmville, Virginia, United States
December 5, 2026 DEC
Arkansas, United States
05DEC
ULTRA
Hope for the Holidays in Memory of Garrett Yeager
Arkansas, United States
December 5, 2026 DEC
Florida, United States
05DEC
ULTRA
Key Largo Bridge Run
Florida, United States
December 5, 2026 DEC

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