2017 - 2018 California Ultramarathon Calendar

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

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181 races

Old West Trails Fest

50K Ultra
March 04, 2017 Race day in 6 days
USA / Pacific / California / Julian
Ultramarathon - 50 kilometers
Desert Trail

Way Too Cool 50k

March 04, 2017 Race day in 6 days
USA / Pacific / California / Cool
Ultramarathon - 50 kilometers
Trail

Marin Ultra Challenge

Marin Ultra Challenge 50K
March 11, 2017 Race day in 13 days
USA / Pacific / California / Fort Baker, Sausalito
Ultramarathon - 50 kilometers
Hilly Trail Inside Trail Racing

Marin Ultra Challenge

Marin Ultra Challenge 50 Mile
March 11, 2017 Race day in 13 days
USA / Pacific / California / Fort Baker, Sausalito
Ultramarathon - 50 miles
UTMB Qualifier Hilly Trail Inside Trail Racing

VALENCIA Trail Race

50K Ultra
March 25, 2017 Race day in 27 days
USA / Pacific / California / 29889, San Francisquito Canyon Road
Ultramarathon - 50 kilometers
Trail

Nine Trails 35 Mile Endurance Run

March 25, 2017 Race day in 27 days
USA / Pacific / California / Santa Barbara
Ultramarathon - 35 miles
Hilly Trail All we do is run

Montaña de Oro

50km
April 01, 2017 Race day in about 1 month
USA / Pacific / California / Los Osos
Ultramarathon - 50 kilometers
Trail Pacific Trail Runs

American River 50-mile Endurance Run

April 01, 2017 Race day in about 1 month
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 about 1 month
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 about 1 month
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 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 1 month
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 1 month
USA / Pacific / California / Walnut Creek
Ultramarathon - 50 kilometers
Brazen Racing Trail