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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
03OCT
ULTRA
6th Fire Tower 50 km Trail Race - 50km
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
6th Hell Creek 100 Km Race - 100km
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
6th Little Dog’s Backyard Ultra - 34h
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
6th Swiss Valley 50 km Trail Race - 50km
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
7th Red Barn 6 Hour Challenge - 6h
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
8th Bubba's Backyard Ultra - 39h
United States
October 3, 2026 to October 5, 2026 OCT
United States
03OCT
ULTRA
8th Pisgah 55.5K Running Race - 55.5km
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
9th Back On the Ranch Trail 6 Hour Run - 6h
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
9th Bear Lake Ultra Race - 24h
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
9th Forbidden Forest 30-Hour Ultra Run - 30h
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
9th Shawnee 50 km Trail Run - 50km
United States
October 3, 2026 OCT
United States
03OCT
ULTRA
9th Shawnee 50 Mile Trail Run - 50mi
United States
October 3, 2026 OCT
Canton, Georgia, United States
03OCT
ULTRA
A Stroll in the Park
Canton, Georgia, United States
October 3, 2026 OCT
Kattskill bay, New York, United States
03OCT
ULTRA
Buck 50
Kattskill bay, New York, United States
October 3, 2026 OCT
Julian, California, United States
03OCT
ULTRA
Cuyamaca 100k
Julian, California, United States
October 3, 2026 OCT
San Marcos, Texas, United States
03OCT
ULTRA
Day of the Dead Half Marathon - Austin
San Marcos, Texas, United States
October 3, 2026 OCT
Export, Pennsylvania, United States
03OCT
ULTRA
Export 100 Trail Run
Export, Pennsylvania, United States
October 3, 2026 OCT
Findlay, Ohio, United States
03OCT
ULTRA
Flag City Backyard Ultra
Findlay, Ohio, United States
October 3, 2026 OCT
Coventry, Vermont, United States
03OCT
ULTRA
Fly to Pie - Kingdom Marathon
Coventry, Vermont, United States
October 3, 2026 OCT
Galena, Illinois, United States
03OCT
ULTRA
Galena Trail Run
Galena, Illinois, United States
October 3, 2026 OCT
Girdwood, Alaska, United States
03OCT
ULTRA
Girdwood Marathon 2026
Girdwood, Alaska, United States
October 3, 2026 OCT
Duluth, Minnesota, United States
03OCT
ULTRA
Grand Traverse
Duluth, Minnesota, United States
October 3, 2026 OCT
Cornwall, Connecticut, United States
03OCT
ULTRA
Iron Hike - Fall Kuwohi Trail Half Marathon Plus - 15 Miles | 7,140' Elevation | 12-Hour | Run, Hike or Walk
Cornwall, Connecticut, United States
October 3, 2026 OCT
Connecticut, United States
03OCT
ULTRA
IronHike Mohawk Mountain
Connecticut, United States
October 3, 2026 OCT

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