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1,670 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
10OCT
ULTRA
14th Euchre Bar Massacre - 50mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
14th Indiana Trail 75 Mile - 75mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
15th Defiance 50k - 50km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
15th West Virginia Trilogy 50 Mile - 50mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
16th Des Plaines River 50 Km Trail Race - 50km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
18th Oil Creek 50 km Trail Run - 50km
United States
October 10, 2026 OCT
Texarkana, Arkansas, United States
10OCT
ULTRA
RAT 1000 and Mini RAT
Texarkana, Arkansas, United States
October 10, 2026 OCT
United States
10OCT
ULTRA
21st Farmdale Trail Run 30 Mile - 30mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
27th Heartland 100 km Race - 100km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd Break the Bank - 50mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd Hustle in the Heartland 8hr Run - 8h
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd Mad Meadows - 50km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd Mad Meadows - 50mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd Rainbow Ridge - 50km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd River Ridge Ultra - 30mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd The Biggest Little Ultra - 6h Fri - 6h
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd The Mammoth at High Hope Ranch - 50km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd Virginia Trail Running Festival - 100mi
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
2nd Wolverine State - 100km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
3rd Death By a Mile - 12h
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
3rd Kettlebell Kountdown - 50km
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
3rd Lion King Backyard Ultra - 19h
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
3rd Mile Madness Endurance Run 6h - 6h
United States
October 10, 2026 OCT
United States
10OCT
ULTRA
3rd Sunset & Cider Trail Races - 50km
United States
October 10, 2026 OCT

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