US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,416 races

"Running for the Bay!" Marathon

October 22, 2017 Race day !
USA / South Atlantic / Florida / Apalachicola Bay
Ultramarathon
Road Running Wheelchair

Bimbler's Bluff 50k

October 22, 2017 Race day !
USA / New England / Connecticut / Guilford
Ultramarathon
Road Running

Bobcat Trail Race

October 22, 2017 Race day !
USA / Mountain Region / Colorado / Palmer Park, Colorado Springs
Ultramarathon

G.O.A.T.z Trail Runs

October 22, 2017 Race day !
USA / West North Central / Nebraska / Glenn Cunningham Lake, Omaha
Ultramarathon
Trail

Ghost Train Trail Races

October 22, 2017 Race day !
USA / New England / New Hampshire / Brookline
Ultramarathon
Trail Tarc Trail Series

Ghost Train Trail Races

October 22, 2017 Race day !
USA / New England / New Hampshire / Brookline
Ultramarathon
Trail Tarc Trail Series

Ghost Train Trail Races

October 22, 2017 Race day !
USA / New England / New Hampshire / Brookline
Ultramarathon
Trail Tarc Trail Series

Ghost Train Trail Races

October 22, 2017 Race day !
USA / New England / New Hampshire / Brookline
Ultramarathon
Trail Tarc Trail Series

Ghost Train Trail Races

October 22, 2017 Race day !
USA / New England / New Hampshire / Brookline
Ultramarathon
Trail Tarc Trail Series

Ghost Train Trail Races

October 22, 2017 Race day !
USA / New England / New Hampshire / Brookline
Ultramarathon
Trail Tarc Trail Series

Jacks 10k/25k/50k Trail Race

October 22, 2017 Race day !
USA / South Atlantic / Florida / Palm Coast
Ultramarathon

The Teaneck 5K Walk/Run for Children with Cancer

October 22, 2017 Race day !
USA / Mid-Atlantic / New Jersey / Teaneck
Ultramarathon
Walk Charity