This calendar lists Ultramarathon races organized in USA during the month of December bearing the tag Trail.
You can click on the buttons below to filter down the selection of race to a specific location, time frame or type of race.
At any time, you can get back to the worldwide calendar.
Upcoming races first
Date newer-> older
High Desert 50K Ultramarathon and 30K
December 01, 2013
North America | USA | Pacific | California
: 50 kilometers
North America | USA | South Atlantic | Florida
South Ponte Vedra
Calero Park Run
December 07, 2013 To be confirmed
Isle du Bois Trail Run
December 07, 2013
North America | USA | West South Central | Texas
: 54 kilometers
McDowell Mountain Frenzy
North America | USA | Mountain Region | Arizona
The North Face Endurance Challenge San Francisco
: 50 miles
December 08, 2013
North America | USA | South Atlantic | Georgia
: 40 miles
December 14, 2013
North America | USA | Pacific | Washington
Tallahassee Ultra Distance Classic
Wakulla Springs State Park
Lookout Mountain 50 Mile & 10k Trail Race
December 21, 2013
North America | USA | East South Central | Tennessee
The HUFF 50K Trail Run and Relay
December 28, 2013
North America | USA | East North Central | Indiana
December 01, 2012
: 100 miles
North America | USA | East North Central | Ohio
Salt Fork State Park, Lore City
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