2018 - 2019 Ultramarathon Calendar in December

Browse our Ultramarathon Calendar for races organized around the world during the month of December among 61 races.

61 races

Arctic Frog

50K
12/01/2018 - 08:00
North America / USA / East North Central / Illinois / Libertyville
Ultramarathon
Running

Calero Park Run

Calero Park 50K Run
12/01/2018 - 08:00 To be confirmed
North America / USA / Pacific / California / San Jose
Ultramarathon
Trail Running Hilly

Civil War Relay

12/02/2018
North America / USA / Pacific / Oregon / Eugene
Ultramarathon
Road Running Relay

Last Chance 50k Trail Run and Relay

50K
12/02/2018
North America / USA / South Atlantic / South Carolina / Cordesville
Ultramarathon
Trail Running

Deception Pass

Deception Pass 50K
12/08/2018 - 08:00
North America / USA / Pacific / Washington / Oak Harbor
Ultramarathon
Trail Running

Sawmill 17 & 55K+

Sawmill 55K+
12/08/2018
North America / USA / Mountain Region / Colorado / Golden
Ultramarathon
Trail Running Mountain Solo

D.N.F. Ultra

DNF 100
12/15/2018 - 08:00
North America / USA / South Atlantic / South Carolina / Greenville
Ultramarathon
Running

Caloosahatchee Ultra

Caloosahatchee Ultra 50K
12/02/2017
North America / USA / South Atlantic / Florida / Alva
Ultramarathon
Trail Running

Jackson County 50-50 Ultramarathon

50mi
12/02/2017 - 07:30
North America / USA / East North Central / Indiana / Brownstown
Ultramarathon
Trail Running

Jackson County 50-50 Ultramarathon

50k
12/02/2017 - 08:00
North America / USA / East North Central / Indiana / Brownstown
Ultramarathon
Trail Running

King of the Mountain 50K

12/02/2017 - 07:15
North America / USA / South Atlantic / South Carolina / Blacksburg
Ultramarathon
Running

McDowell Mountain Frenzy

50K
12/02/2017 - 08:00
North America / USA / Mountain Region / Arizona / Fountain Hills
Ultramarathon
Desert Trail Running Solo