2017 - 2018 California Ultramarathon Calendar

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

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181 races

Montaña de Oro

50km
April 01, 2017 Race day in 3 days
USA / Pacific / California / Los Osos
Ultramarathon - 50 kilometers
Trail Pacific Trail Runs

American River 50-mile Endurance Run

April 01, 2017 Race day in 3 days
USA / Pacific / California / Sacramento
Ultramarathon - 50 miles
Trail

Old Goats 50 Mile Trail Race

Old Goats 50K Trail Race
April 01, 2017 Race day in 3 days
USA / Pacific / California / Cleveland National Forest
Ultramarathon - 50 kilometers
Trail Old Goat Trail Races

Old Goats 50 Mile Trail Race

Old Goats 50 Mile Trail Race
April 01, 2017 Race day in 3 days
USA / Pacific / California / Cleveland National Forest
Ultramarathon - 50 miles
Trail Old Goat Trail Races

Beyond Limits Ultra and BLU Relentless

Beyond Limits Ultra and BLU Relentless 100 Miler
April 06, 2017 Race day in 8 days
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 8 days
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 8 days
USA / Pacific / California / Mountain Center
Ultramarathon - 50 miles
Trail Mountain

Ragnar Relay So Cal

April 07, 2017 Race day in 9 days
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 10 days
USA / Pacific / California / Walnut Creek
Ultramarathon - 50 kilometers
Brazen Racing Trail

Oriflamme 50k

April 08, 2017 Race day in 10 days
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 17 days
USA / Pacific / California / Berkeley
Ultramarathon - 50 kilometers
Coastal Trail Runs Hilly Trail

Lake Sonoma 50

April 15, 2017 Race day in 17 days
USA / Pacific / California / Geyserville
Ultramarathon - 50 miles
Hilly Trail

Ruth Anderson Ultras

Ruth Anderson 100k
April 15, 2017 Race day in 17 days
USA / Pacific / California / San Francisco
Ultramarathon - 100 kilometers

Ruth Anderson Ultras

Ruth Anderson 50k
April 15, 2017 Race day in 17 days
USA / Pacific / California / San Francisco
Ultramarathon - 50 kilometers

Ruth Anderson Ultras

Ruth Anderson 50M
April 15, 2017 Race day in 17 days
USA / Pacific / California / San Francisco
Ultramarathon - 50 miles