US Ultramarathons

Browse our Ultramarathon Calendar for races organized in the USA.

1,409 races

Darkside Distance Festival

October 20, 2017 Race day in 3 days
USA / South Atlantic / Georgia / Senoia
Ultramarathon
Road Running

Darkside Distance Festival

October 20, 2017 Race day in 3 days
USA / South Atlantic / Georgia / Senoia
Ultramarathon
Road Running

Pony Express Trail 50 and 100

October 20, 2017 Race day in 3 days
USA / Mountain Region / Utah / Faust
Ultramarathon
Flat Desert Trail

Pony Express Trail 50 and 100

October 20, 2017 Race day in 3 days
USA / Mountain Region / Utah / Faust
Ultramarathon
Flat Desert Trail

Ragnar Trail Hill Country-TX, Presented by Salomon

October 20, 2017 Race day in 3 days
USA / West South Central / Texas / Comfort
Ultramarathon
Trail

The Wild Oak Trail 100 - "Hot" TWOT

October 20, 2017 Race day in 3 days
USA / South Atlantic / Virginia / Stokesville
Ultramarathon
Trail

Tuna Run 200

October 20, 2017 Race day in 3 days
USA / South Atlantic / North Carolina / Raleigh
Ultramarathon
Relay

Eldrith Gosney’s Pure Ultra

October 21, 2017 Race day in 4 days
USA / Pacific / California / Mt. Tamalpais State Park, Mill Valley
Ultramarathon
Trail Pacific Trail Runs

Firewater 100M, 100K & 50K

October 21, 2017 Race day in 4 days
USA / East South Central / Tennessee / Greenback
Ultramarathon
Trail

Firewater 100M, 100K & 50K

October 21, 2017 Race day in 4 days
USA / East South Central / Tennessee / Greenback
Ultramarathon
Trail

Firewater 100M, 100K & 50K

October 21, 2017 Race day in 4 days
USA / East South Central / Tennessee / Greenback
Ultramarathon
Trail

Gulf to Gulf 80 Mile Relay

October 21, 2017 Race day in 4 days
USA / South Atlantic / Florida / Naples
Ultramarathon
Relay