2015 - 2016 California Ultramarathon Calendar in October

Browse our Ultramarathon Calendar for races organized in California during the month of October among 19 races.

19 races

  • 1

Cuyamaca 100K Endurance Run

  • October 03, 2015 - 06:30
  • North America | USA | Pacific | California | Cuyamaca Rancho State Park
  • Ultramarathon - 100 kilometers
  • UTMB Qualifier Trail Western States Qualifier

Pacifica Summit Run 10K/Half Marathon/30K/50K

Pacifica Summit Run 50K
  • October 03, 2015 - 09:00
  • North America | USA | Pacific | California | San Pedro Valley State Park, Pacifica
  • Ultramarathon - 50 kilometers
  • Trail Urban Coyote Racing

Widowmaker Trail Runs

Widowmaker Trail 50K Run
  • October 04, 2015
  • North America | USA | Pacific | California | El Cajon Wilderness
  • Ultramarathon - 50 kilometers
  • Trail

Dick Collins Firetrails 50

  • October 10, 2015 - 06:30
  • North America | USA | Pacific | California | Lake Chabot
  • Ultramarathon - 50 miles
  • Trail

Euchre Bar Massacre

Euchre Bar Massacre 50 M
  • October 10, 2015 - 06:00
  • North America | USA | Pacific | California | Foresthill
  • Ultramarathon - 50 miles
  • Trail Mountain

Skyline to the Sea Marathon & 50km

Skyline to the Sea 50km
  • October 10, 2015 - 09:00
  • North America | USA | Pacific | California | Saratoga Gap, Los Gatos
  • Ultramarathon - 50 kilometers
  • Trail Pacific Trail Runs

Owen's Peak Marathon & 10 Miler Man vs Horse Trail Event

Owen's Peak Man vs Horse 50K Trail Adventure
  • October 11, 2015
  • North America | USA | Pacific | California | Inyokern
  • Ultramarathon - 50 kilometers
  • Hilly Trail

100 Mile Endurance Challenge

  • October 17, 2015 - 08:00
  • North America | USA | Pacific | California | Corona
  • Ultramarathon - 100 miles
  • Charity Road Running

Twin Peaks

Twin Peaks 50 km
  • October 17, 2015
  • North America | USA | Pacific | California | Corona
  • Ultramarathon - 50 kilometers
  • Trail Mountain

Twin Peaks

Twin Peaks 50 Miler
  • October 17, 2015 - 06:00
  • North America | USA | Pacific | California | Corona
  • Ultramarathon - 50 miles
  • Trail Mountain

Coyote Ridge Trail Run

Coyote Ridge 50 Km Trail Run
  • October 18, 2015 - 08:00
  • North America | USA | Pacific | California | Muir Beach
  • Ultramarathon - 50 kilometers
  • Hilly Trail Coastal Trail Runs

Ragnar Relay Napa Valley

  • October 23, 2015
  • North America | USA | Pacific | California | San Francisco
  • Ultramarathon - 186.4 miles
  • Relay Ragnar Relay Series

Stinson Beach

Stinson Beach 50 km
  • October 24, 2015 - 08:30
  • North America | USA | Pacific | California | Stinson Beach Park, Stinson Beach
  • Ultramarathon - 50 kilometers
  • Pacific Trail Runs

Lake Hodges Trail Fest

Lake Hodges 50K
  • October 25, 2015 - 07:00
  • North America | USA | Pacific | California | Escondido
  • Ultramarathon - 50 kilometers
  • Trail

Weaver Basin 50K

  • October 04, 2014 - 08:00
  • North America | USA | Pacific | California | Weaverville
  • Ultramarathon - 50 kilometers
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