Skip to content
6,619 races in the next 12 months6,619 races 159 countries Free for runners and organizers No commission · no added feeNo commission
SundayMarathon
Find a race

Search marathons

1,670 marathons found for Ultra marathon, United States. Keep the list broad first, then tighten the filters when a race looks realistic.





Clear filters

Advanced filters





Planning filters

Matching races

United States
17OCT
ULTRA
9th Loopet Loppet 6 Hour Run - 6h
United States
October 17, 2026 OCT
United States
17OCT
ULTRA
9th The Itch 50km Race - 50km
United States
October 17, 2026 OCT
Bell Buckle, Tennessee, United States
17OCT
ULTRA
Big Dog's Backyard Ultra
Bell Buckle, Tennessee, United States
October 17, 2026 OCT
Millston, Wisconsin, United States
17OCT
ULTRA
Black River Trail Classic
Millston, Wisconsin, United States
October 17, 2026 OCT
Colorado Springs, Colorado, United States
17OCT
ULTRA
Bobcat Trail Races
Colorado Springs, Colorado, United States
October 17, 2026 OCT
South Dakota, United States
17OCT
ULTRA
Brookings Marathon
South Dakota, United States
October 17, 2026 OCT
Illinois, United States
17OCT
ULTRA
Country Sole Half Marathon
Illinois, United States
October 17, 2026 OCT
Houston, Texas, United States
17OCT
ULTRA
Day of the Dead Half Marathon - Houston
Houston, Texas, United States
October 17, 2026 OCT
Michigan, United States
17OCT
ULTRA
Detroit Marathon
Michigan, United States
October 17, 2026 OCT
Tillamook, Oregon, United States
17OCT
ULTRA
Elk-Kings Trail Races
Tillamook, Oregon, United States
October 17, 2026 OCT
Copperhill, Tennessee, United States
17OCT
ULTRA
FSR 100
Copperhill, Tennessee, United States
October 17, 2026 OCT
Galveston, Texas, United States
17OCT
ULTRA
Galveston Ultra Trail
Galveston, Texas, United States
October 17, 2026 OCT
Silver City, New Mexico, United States
17OCT
ULTRA
Gila 100
Silver City, New Mexico, United States
October 17, 2026 OCT
Cool, California, United States
17OCT
ULTRA
Heart of Cool Trail Run
Cool, California, United States
October 17, 2026 OCT
Fayetteville, Arkansas, United States
17OCT
ULTRA
Hero Half Marathon
Fayetteville, Arkansas, United States
October 17, 2026 OCT
Hickory, North Carolina, United States
17OCT
ULTRA
HKY 100 Mile Ultra Trail Race
Hickory, North Carolina, United States
October 17, 2026 OCT
South Jordan, Utah, United States
17OCT
ULTRA
Jordan River Blitz Backyard
South Jordan, Utah, United States
October 17, 2026 OCT
San Diego, California, United States
17OCT
ULTRA
Lake Hodges Trail Festival
San Diego, California, United States
October 17, 2026 OCT
Washington, United States
17OCT
ULTRA
Larch Madness Trail Races
Washington, United States
October 17, 2026 OCT
Farmersville, Texas, United States
17OCT
ULTRA
Oktoberfest Trail Run
Farmersville, Texas, United States
October 17, 2026 OCT
Columbus, Indiana, United States
17OCT
ULTRA
Outlast Indianapolis
Columbus, Indiana, United States
October 17, 2026 OCT
Columbia, Missouri, United States
17OCT
ULTRA
Rock Bridge Revenge
Columbia, Missouri, United States
October 17, 2026 OCT
Anderson, South Carolina, United States
17OCT
ULTRA
Sadlers Creek Stumble (32 Hour - 26.2 - 13.1 - 10k)
Anderson, South Carolina, United States
October 17, 2026 OCT
Emporium, Pennsylvania, United States
17OCT
ULTRA
Sinnemahone Ultra Trail Run Sponsored by Keystone Rural Health Consortia
Emporium, Pennsylvania, United States
October 17, 2026 OCT

Organizers can start from this filtered search with the country already filled, then add the official source, date, registration link, and contact details for a free listing review. We verify the official source before publishing — no fee.

  • Free listing review
  • Official source verification
  • Runner-ready listing
  • Organizer dashboard

If your race appears in the results, use Update listing from the row. Missing race? Submit it for free with this page context prefilled.

List your race — free How review works