2017 - 2018 California Ultramarathon Calendar

Browse our Ultramarathon Calendar for races organized in California among 181 races.

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181 races

Beyond Limits Ultra and BLU Relentless

Beyond Limits Ultra and BLU Relentless 100 Miler
April 06, 2017 Race day in about 1 month
USA / Pacific / California / Mountain Center
Ultramarathon - 100 miles
Trail Mountain

Beyond Limits Ultra and BLU Relentless

Beyond Limits Ultra and BLU Relentless 50K
April 06, 2017 Race day in about 1 month
USA / Pacific / California / Mountain Center
Ultramarathon - 50 kilometers
Trail Mountain

Beyond Limits Ultra and BLU Relentless

Beyond Limits Ultra and BLU Relentless 50 Miler
April 06, 2017 Race day in about 1 month
USA / Pacific / California / Mountain Center
Ultramarathon - 50 miles
Trail Mountain

Ragnar Relay So Cal

April 07, 2017 Race day in about 2 months
USA / Pacific / California / Huntington Beach
Ultramarathon - 200 miles
Ragnar Relay Series Relay

Diablo Trails Challenge

Diablo Trails Challenge 50K
April 08, 2017 Race day in about 2 months
USA / Pacific / California / Walnut Creek
Ultramarathon - 50 kilometers
Brazen Racing Trail

Oriflamme 50k

April 08, 2017 Race day in about 2 months
USA / Pacific / California / Julian
Ultramarathon - 50 kilometers
Desert Trail

Grizzly Peak Trail Run

Grizzly Peak 50 Km Trail Run
April 15, 2017 Race day in about 2 months
USA / Pacific / California / Berkeley
Ultramarathon - 50 kilometers
Coastal Trail Runs Hilly Trail

Lake Sonoma 50

April 15, 2017 Race day in about 2 months
USA / Pacific / California / Geyserville
Ultramarathon - 50 miles
Hilly Trail

Ruth Anderson Ultras

Ruth Anderson 100k
April 15, 2017 Race day in about 2 months
USA / Pacific / California / San Francisco
Ultramarathon - 100 kilometers

Ruth Anderson Ultras

Ruth Anderson 50k
April 15, 2017 Race day in about 2 months
USA / Pacific / California / San Francisco
Ultramarathon - 50 kilometers

Ruth Anderson Ultras

Ruth Anderson 50M
April 15, 2017 Race day in about 2 months
USA / Pacific / California / San Francisco
Ultramarathon - 50 miles

Woodside Crossover /Purisima Creek Crossover

Woodside Crossover 50K
April 15, 2017 Race day in about 2 months
USA / Pacific / California / Woodside
Ultramarathon - 50 kilometers
Walk Trail Inside Trail Racing

Leona Divide 50/50

50K
April 22, 2017 Race day in 2 months
USA / Pacific / California / Lake Hughes
Ultramarathon - 50 kilometers
UTMB Qualifier Trail

Mokelumne River Trail Running Festival

50K
April 22, 2017 Race day in 2 months
USA / Pacific / California / Valley Springs
Ultramarathon - 50 kilometers
Trail Elemental Running and Training

Leona Divide 50/50

50 Miles
April 22, 2017 Race day in 2 months
USA / Pacific / California / Lake Hughes
Ultramarathon - 50 miles
UTMB Qualifier Trail