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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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Lewisville, Texas, United States
31OCT
ULTRA
Camino De Los Muertos
Lewisville, Texas, United States
October 31, 2026 OCT
Illinois, United States
31OCT
ULTRA
Carrera de los Muertos
Illinois, United States
October 31, 2026 OCT
San Juan Capistrano, California, United States
31OCT
ULTRA
Caspers Trail Races
San Juan Capistrano, California, United States
October 31, 2026 OCT
Arkansas, United States
31OCT
ULTRA
City of Colleges Half Marathon
Arkansas, United States
October 31, 2026 OCT
New Jersey, United States
31OCT
ULTRA
Course de la Liberté
New Jersey, United States
October 31, 2026 OCT
Nebraska, United States
31OCT
ULTRA
DoNot Stop Half Marathon (5k/10k) - Ann Arbor
Nebraska, United States
October 31, 2026 OCT
Willow Springs, Illinois, United States
31OCT
ULTRA
Fancy Nonsense 25k/50k
Willow Springs, Illinois, United States
October 31, 2026 OCT
Galena, Illinois, United States
31OCT
ULTRA
Galena River Fall Half Marathon & 8k
Galena, Illinois, United States
October 31, 2026 OCT
Texas, United States
31OCT
ULTRA
Harbor Half Marathon
Texas, United States
October 31, 2026 OCT
Iowa, United States
31OCT
ULTRA
Hillbilly Hike Half Marathon, 10k, & Greubel Memorial 5k
Iowa, United States
October 31, 2026 OCT
California, United States
31OCT
ULTRA
IPA10K Brewfest & Beer Mile
California, United States
October 31, 2026 OCT
Arkansas, United States
31OCT
ULTRA
Jim Rowland FCA River Valley Run
Arkansas, United States
October 31, 2026 OCT
Mandeville, Louisiana, United States
31OCT
ULTRA
Last Wolf Howling
Mandeville, Louisiana, United States
October 31, 2026 OCT
Harrisburg, Pennsylvania, United States
31OCT
ULTRA
Medal Madness 5K, 10K,13.1M & 26.2M at Harrisburg, PA
Harrisburg, Pennsylvania, United States
October 31, 2026 OCT
Arkansas, United States
31OCT
ULTRA
Mid-South Races for Hope
Arkansas, United States
October 31, 2026 OCT
Pennsylvania, United States
31OCT
ULTRA
Mushroom Cap 13.1
Pennsylvania, United States
October 31, 2026 OCT
Navajo Mountain, Utah, United States
31OCT
ULTRA
Naatsisaan Trail Races
Navajo Mountain, Utah, United States
October 31, 2026 OCT
Roland, Arkansas, United States
31OCT
ULTRA
Race the Base Trail Run
Roland, Arkansas, United States
October 31, 2026 OCT
South Carolina, United States
31OCT
ULTRA
Run like a Nut
South Carolina, United States
October 31, 2026 OCT
Kansas, United States
31OCT
ULTRA
Salina Crossroads Marathon
Kansas, United States
October 31, 2026 OCT
California, United States
31OCT
ULTRA
Santa Clarita Trail Race
California, United States
October 31, 2026 OCT
Iowa, United States
31OCT
ULTRA
Scott Sterrett Memorial Half-Marathon
Iowa, United States
October 31, 2026 OCT
South Carolina, United States
31OCT
ULTRA
Summerville Sweet Tea Half Marathon and 10k
South Carolina, United States
October 31, 2026 OCT
Old Fort, North Carolina, United States
31OCT
ULTRA
The 25th Hour Endurance Run
Old Fort, North Carolina, United States
October 31, 2026 OCT

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