Skip to content
6,603 races in the next 12 months6,603 races 159 countries Free for runners and organizers No commission · no added feeNo commission
SundayMarathon
Find a race

Search marathons

1,669 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

Florida, United States
25OCT
ULTRA
Treasure Coast Halloween 13.1
Florida, United States
October 25, 2026 OCT
Richland, Washington, United States
25OCT
ULTRA
Tri-Cities Marathon
Richland, Washington, United States
October 25, 2026 OCT
Long Beach, California, United States
25OCT
ULTRA
Trick or Trot 5K, 10K, and Half Marathon by Califlow Runs
Long Beach, California, United States
October 25, 2026 OCT
Texas, United States
25OCT
ULTRA
Two Rivers Half Marathon & Ryan Bielke 5K
Texas, United States
October 25, 2026 OCT
Lock Haven, Pennsylvania, United States
25OCT
ULTRA
WTF Dark Sky 220 / Cherry Springs 110 / Wooly 50K
Lock Haven, Pennsylvania, United States
October 25, 2026 OCT
Massachusetts, United States
25OCT
ULTRA
Xfinity Newburyport Half Marathon
Massachusetts, United States
October 25, 2026 OCT
United States
26OCT
ULTRA
24th Stone Steps 50K Trail Run - 50km
United States
October 26, 2026 OCT
Perris, California, United States
28OCT
ULTRA
Machete Muertos 200
Perris, California, United States
October 28, 2026 OCT
Las Cruces, New Mexico, United States
30OCT
ULTRA
Backyard Ultra
Las Cruces, New Mexico, United States
October 30, 2026 OCT
United States
30OCT
ULTRA
2nd OMR Ultra 24 Hour Challenge - 24h
United States
October 30, 2026 OCT
United States
30OCT
ULTRA
4th Machete Trail Madness 50 Miler - 50mi
United States
October 30, 2026 OCT
Sylvan Grove, Kansas, United States
30OCT
ULTRA
Hell Creek 100
Sylvan Grove, Kansas, United States
October 30, 2026 OCT
Griffin, Georgia, United States
30OCT
ULTRA
Lone Wolf 135
Griffin, Georgia, United States
October 30, 2026 OCT
United States
31OCT
ULTRA
10th Fall Back Blast 50km Race - 50km
United States
October 31, 2026 OCT
United States
31OCT
ULTRA
16th Cougar Mountain Trail Run - 50km
United States
October 31, 2026 OCT
United States
31OCT
ULTRA
18th Ozark Trail 100 Mile Endurance Run - 100mi
United States
October 31, 2026 OCT
United States
31OCT
ULTRA
18th Pumpkin Butt - 50km
United States
October 31, 2026 OCT
United States
31OCT
ULTRA
24th Javelina Jundred 100 km Endurance Run - 100km
United States
October 31, 2026 OCT
United States
31OCT
ULTRA
27th Chicago Lakefront Fall 50 Mile Race - 50mi
United States
October 31, 2026 OCT
United States
31OCT
ULTRA
3rd Colorado 6 Hour Run - 6h
United States
October 31, 2026 OCT
United States
31OCT
ULTRA
4th Beast of Burden - Arkansas - 25h
United States
October 31, 2026 OCT
Dousman, Wisconsin, United States
31OCT
ULTRA
Among the Trees
Dousman, Wisconsin, United States
October 31, 2026 OCT
Bowling Green, Kentucky, United States
31OCT
ULTRA
bg26.2 & half marathon and bg6000
Bowling Green, Kentucky, United States
October 31, 2026 OCT
Virginia, United States
31OCT
ULTRA
Boys Home Harvest Hustle
Virginia, United States
October 31, 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