2017 - 2018 USA Ultramarathon Calendar in October

Browse our Ultramarathon Calendar for races organized in USA during the month of October among 190 races.

190 races

Blues Cruise 50k Trail Ultra

October 01, 2017 Race day in 2 months
USA / Mid-Atlantic / Pennsylvania / Leesport
Ultramarathon
Trail

Coyote Scramble Ultras

October 01, 2017 Race day in 2 months
USA / New England / Vermont / Kingdom Trails, East Burke
Ultramarathon
Trail

Wolf Creek Canyon Relay

October 01, 2017 Race day in 2 months
USA / Mountain Region / Montana / Wolf Creek
Ultramarathon

GrindStone 100

October 06, 2017 Race day in 2 months
USA / South Atlantic / Virginia / Swoope
Ultramarathon
Trail Eco-x Sports Western States Qualifier

Ragnar Trail Carolinas-SC, Presented by Salomon

October 06, 2017 Race day in 2 months
USA / South Atlantic / South Carolina / Fort Mill
Ultramarathon
Trail

Can Lake 50

October 07, 2017 Race day in 3 months
USA / Mid-Atlantic / New York / Canandaigua Lake
Ultramarathon
Road Running

Can Lake 50

October 07, 2017 Race day in 3 months
USA / Mid-Atlantic / New York / Canandaigua Lake
Ultramarathon

Castle Rock Trail Festival

October 07, 2017 Race day in 3 months
USA / Mountain Region / Colorado / Castle Rock
Ultramarathon
Trail

Columbus Day Relay

October 07, 2017 Race day in 3 months
USA / South Atlantic / Georgia / Columbus
Ultramarathon
Relay

Cuyamaca 100K Endurance Run

October 07, 2017 To be confirmed Race day in 3 months
USA / Pacific / California / Cuyamaca Rancho State Park
Ultramarathon
Trail UTMB Qualifier Western States Qualifier

Defiance 50K/30K/15K

October 07, 2017 Race day in 3 months
USA / Pacific / Washington / Owens Beach
Ultramarathon
Trail

Farmdale Trail Runs

October 07, 2017 Race day in 3 months
USA / East North Central / Illinois / East Peoria
Ultramarathon
Trail