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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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California, United States
18OCT
ULTRA
Lake Tahoe Marathon Events
California, United States
October 18, 2026 OCT
Michigan, United States
18OCT
ULTRA
Lakeshore Long Run
Michigan, United States
October 18, 2026 OCT
Iowa, United States
18OCT
ULTRA
Mines of Spain
Iowa, United States
October 18, 2026 OCT
Silverton, Oregon, United States
18OCT
ULTRA
Silver Falls Trail Marathon
Silverton, Oregon, United States
October 18, 2026 OCT
Texas, United States
18OCT
ULTRA
Spooky Sprint - San Antonio
Texas, United States
October 18, 2026 OCT
Maine, United States
18OCT
ULTRA
The MDI
Maine, United States
October 18, 2026 OCT
Louisiana, United States
18OCT
ULTRA
Ultramarathon de la Nouvelle Orléans
Louisiana, United States
October 18, 2026 OCT
Huntington Beach, California, United States
18OCT
ULTRA
Witches Wave - Halloween Run 5K, 10K, and Half Marathon by Califlow Runs
Huntington Beach, California, United States
October 18, 2026 OCT
Colorado, United States
19OCT
ULTRA
Blue Sky Trail Marathon
Colorado, United States
October 19, 2026 OCT
Arizona, United States
20OCT
ULTRA
Petrified Forest Marathon
Arizona, United States
October 20, 2026 OCT
Pennsylvania, United States
20OCT
ULTRA
Tussey Mountainback 50 Miler
Pennsylvania, United States
October 20, 2026 OCT
Nevada, United States
20OCT
ULTRA
Ultra X Nevada
Nevada, United States
October 20, 2026 to October 24, 2026 OCT
United States
21OCT
ULTRA
Canyonlands Ultra - 80K
United States
October 21, 2026 OCT
United States
22OCT
ULTRA
11th Endless Mile - 72 Hour Race - 72h
United States
October 22, 2026 to October 25, 2026 OCT
United States
22OCT
ULTRA
3rd Weekend at Burney 48h - 48h
United States
October 22, 2026 to October 24, 2026 OCT
Alabaster, Alabama, United States
22OCT
ULTRA
The Endless Mile
Alabaster, Alabama, United States
October 22, 2026 OCT
United States
23OCT
ULTRA
10th No Business 100 - 100mi
United States
October 23, 2026 OCT
United States
23OCT
ULTRA
11th Endless Mile - 48 Hour Race - 48h
United States
October 23, 2026 to October 25, 2026 OCT
United States
23OCT
ULTRA
20th Cactus Rose 100 Mile - 100mi
United States
October 23, 2026 OCT
United States
23OCT
ULTRA
2nd Commodore 24 Hour Challenge - 48mi
United States
October 23, 2026 OCT
United States
23OCT
ULTRA
2nd The Wasatch Yard - 24h
United States
October 23, 2026 OCT
United States
23OCT
ULTRA
3rd Weekend at Burney 12h - 12h
United States
October 23, 2026 OCT
United States
23OCT
ULTRA
4th Hare Mountain 100 - 100mi
United States
October 23, 2026 OCT
United States
23OCT
ULTRA
4th NorCal Backyard Ultra - 31h
United States
October 23, 2026 OCT

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