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7Nov2026
Moab Trail Marathon
Slickrock singletrack along the Colorado River
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21Nov2026
JFK 50 Mile
The oldest US ultra on Appalachian Trail and canal towpath
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6Feb2027
Golden Gate Trail Run
Marin Headlands trail with views of the Golden Gate Bridge
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13Feb2027
Black Canyon Ultras
A Golden Ticket race on the Black Canyon Trail
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6Mar2027
Way Too Cool 50K
Legendary trail fifty K with rolling hills and creek crossings
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10Apr2027
Zion Ultras
Ultra distances through the towering red rock cliffs of Zion
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Jun2027
Dipsea Race
America's oldest trail race, since 1905
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Jun2027
Leadville Trail Marathon
Climb to Mosquito Pass at 13,185 feet in historic Leadville
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26Jun2027
Western States 100
The original 100 miler from Olympic Valley to Auburn
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31Jul2027
Yellowstone Trail Marathon
Looped trails through national forest on Yellowstones doorstep
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21Aug2027
Leadville Trail 100
One hundred miles above two miles high in the Rockies
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Sep2027
Imogene Pass Run
Cross a 13114-foot pass between historic Ouray and Telluride
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Sep2027
Pikes Peak Marathon
The oldest continually held marathon in America, up Pikes Peak
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Oct2027
Silver Falls Trail Runs
Scenic Oregon trails and challenging terrain at Silver Falls
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Oct2027
Grand Canyon Trail Marathon
Starts in Tusayan, gateway to the Grand Canyon
More collections in the United States
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This list is edited by RunCalendar and updated as the calendar moves. Last updated 5 November 2026.