United States
- Alabama 46
- Alaska 17
- Arizona 99
- Arkansas 27
- California 341
- Colorado 132
- Connecticut 46
- Delaware 8
- District of Columbia 11
- Florida 138
- Georgia 106
- Hawaii 3
- Idaho 23
- Illinois 85
- Indiana 59
- Iowa 41
- Kansas 35
- Kentucky 42
- Louisiana 29
- Maine 32
- Maryland 60
- Massachusetts 50
- Michigan 109
- Minnesota 53
- Mississippi 16
- Missouri 69
- Montana 32
- Nebraska 18
- Nevada 31
- New Hampshire 43
- New Jersey 53
- New Mexico 28
- New York 154
- North Carolina 124
- North Dakota 1
- Ohio 108
- Oklahoma 28
- Oregon 68
- Pennsylvania 178
- Puerto Rico
- Rhode Island 11
- South Carolina 54
- South Dakota 12
- Tennessee 68
- Texas 180
- Utah 81
- Vermont 31
- Virginia 147
- Washington 108
- West Virginia 25
- Wisconsin 71
- Wyoming 12
Trail Running Calendar United States 2026-2027
Explore the best trail runs in the United States for 2026-2027! Our updated list features 3840 exciting trail runs across the country. Find your next trail run in the United States below and join the trail community at these great events!
October 2026
Experience the peak of autumn foliage at the Chippewa Creek Challenge in the Brecksville Reservation. Run a half marathon trail course through the heart of the Cleveland Metroparks amidst vibrant fall colors.
Andy's Backyard Ultra is a last person standing ultra at Teventrails in Earlysville, VA where runners complete a 4.17 mile loop each hour. The final finisher is the runner who completes one more lap than all other entrants.
Trail runs at Shaffer Bend Recreation Area through rolling hills and golden meadows, with multiple distances and proceeds supporting HKRS Cedar Park youth programs.
An elimination style endurance race in Lumberton TX on Oct 24, 2026 featuring repeated 4 mile loops, aid stations, and proceeds supporting organizations that recover missing children.
Trail runs in San Felasco Hammock Preserve State Park near Alachua FL offering 25K and 50K loop courses with staffed aid stations and proceeds benefiting Friends of San Felasco.
A remote, unmarked backcountry foot race at Oxbow Reservoir, CA with three unassisted route options from about 15 to 43+ miles.
Chicagoland trail ultra at Deer Grove with repeated 5.5 mile loops, stocked aid stations, community focus, and cash prizes.
Trail ultramarathon in Patapsco Valley State Park offering 50k and 25k options, in-person and virtual, with aid stations, event shirt, and finisher awards.
October trail festival at Little Pine State Park with a demanding 25K of 5,000 plus feet vertical and a 10K of about 1,000 feet on technical trails.
Trail races in Allegany State Park offering 50 miles 50 km and 25 km on looped trails with aid stations and time cutoffs.
Late October trail races at Lake Murray State Park near Ardmore, OK offering 100 Mile, 100K, 50K, 25K and 5 Mile courses with cupless aid stations and varied terrain.
Trail and virtual races on Mackinac Island on October 24, 2026, including a half marathon and 5.7 mile options. Registration runs December 14, 2025 to March 31, 2026 and a $55 fee is listed.
Battle Born Trail Run at Cathedral Gorge State Park on October 24, 2026 offers four trail distances including a new 18.64 mile course. Routes are marked on dirt trails with aid stations, custom finisher medals, and a virtual option.
Test your endurance on the historic grounds of a former WWII training facility in South Carolina. Choose between 50k, 25k, or 8 mile technical trail courses at the rugged Croft State Park.
A zombie themed 5K in Midway, Utah on October 24, 2026, with chasing zombies, action obstacles, fog, lighting, and sound effects. Open to ages 12 and up with adult supervision required for ages 12 to 16; $2 per ticket supports Primary Children's Hosp..
A women's only trail event at Rocky Hill Ranch on October 24, 2026 offering multiple distances from 5 km to 100 km, plus a 100 km relay, full aid stations, cupless fueling, camping, and finisher awards including buckles for 50 km and 100 km.
A fall trail event at Grills Preserve in Westerly with 10 mile and 10 km courses across single-track trails and riverfront sections. Club timing is used, orange clothing is required, and post-race refreshments are provided.
Trail races at Parvin State Park offer a half marathon and a 6 hour lap event on a mostly trail lollipop loop. The event is cupless and uses an aid station at the start and finish.
Yippee-Ki-Yay Races in Council Bluffs offer 50K, half marathon and 10K on the Wabash Trace Nature Trail with a 200 runner field limit.