United States
- Alabama 47
- Alaska 22
- Arizona 104
- Arkansas 27
- California 344
- Colorado 137
- Connecticut 46
- Delaware 9
- District of Columbia 11
- Florida 135
- Georgia 107
- Hawaii 3
- Idaho 25
- Illinois 87
- Indiana 62
- Iowa 43
- Kansas 34
- Kentucky 43
- Louisiana 29
- Maine 33
- Maryland 60
- Massachusetts 51
- Michigan 114
- Minnesota 58
- Mississippi 16
- Missouri 70
- Montana 37
- Nebraska 18
- Nevada 31
- New Hampshire 45
- New Jersey 54
- New Mexico 28
- New York 154
- North Carolina 129
- North Dakota 1
- Ohio 111
- Oklahoma 28
- Oregon 71
- Pennsylvania 179
- Puerto Rico
- Rhode Island 11
- South Carolina 56
- South Dakota 11
- Tennessee 69
- Texas 181
- Utah 86
- Vermont 34
- Virginia 149
- Washington 111
- West Virginia 25
- Wisconsin 73
- Wyoming 14
Trail Running Calendar United States 2026-2027
Explore the best trail runs in the United States for 2026-2027! Our updated list features 3937 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!
December 2026
Experience trail running along the scenic Millerton Lake and San Joaquin River in Friant. This event features 10k, 25k, and 50k races with regular aid stations and support for long distance runners.
A trail running weekend in Liberty Hill near Austin on December 5, 2026, with distances from a 1-mile youth run to a 50K at a historic ranch by the San Gabriel River. Registration opens December 9, 2025 and fees range from $15.00 to $135.00.
An annual trail event at Woolly Hollow State Park with 10, 4 and 1 mile courses plus a virtual run or walk. Proceeds benefit the Cabugcayan Mission Church in the Philippines and awards top finishers in the 10 and 4 mile races.
Sycamore 8 is a December trail race in Johnston, Iowa, that follows the Sycamore Trail along the Des Moines River. The route offers rolling single track, river views, variable winter conditions, and a field capped at 300 participants.
A lap based endurance event in Florence with 2 hour and 4 hour run and ruck divisions on a 2.5 mile loop; finisher coins, prizes, and proceeds support local trails and parks.
A 50 mile point to point trail race through Cleveland National Forest and Cuyamaca Rancho State Park, featuring Stonewall Peak and Oriflamme Canyon. Aid stations, drop bag rules, shuttle options, and finish amenities at Stagecoach Trails are provided..
Last man standing trail race at Walnut Creek Resort in Gordonville TX where competitors repeat a 4.5 mile loop each hour until one runner remains.
Multi-distance trail races near Ville Platte LA on December 5 2026 featuring 100, 60, 40 and 20 Miler options through cypress swamps and pine woods with course support.
A 34 hour ultrarun on a two mile loop in Valley, AL, supporting the town's holiday carousel tradition; event shirts, finisher awards and 100 mile belt buckles are offered.
Trail races at Cloudland Canyon State Park on December 5 and 6, 2026 offer 50M, 50K, 25K and 5M distances with published elevation gain, cutoffs, maps and a runner handbook.
Endurance event in Laurens SC on a 2.5 mile loop featuring a last runner standing running division and a 12 hour ruck division with a 25 lb ruck.
An Arizona Trail ultra on December 5, 2026, around Vail with 50 mile, 55K and half marathon options. Courses start and finish at Colossal Cave Mountain Park and feature well-stocked aid stations and a cupless policy.
Trail ultramarathon weekend near Brownstown IN on Dec 5, 2026 with 10M, 50k, 100k and 100k relay, GPX files, live tracking, cabin packages and camping.
Trail races at McDowell Mountain Regional Park offering distances from 5 miles to 50 miles on marked single track with aid stations, chip timing, and on-site medical support.
Krampuslauf brings a Krampus-themed running event to Dartmouth Skiway in Lyme, New Hampshire, with 5K and 10K loops and a 9 hour 10K lap challenge. Finishers receive medals and lap runners collect pins and a 50K medal.
A trail race at Ray Roberts Lake offering 4M, 10M, 20M and 50K distances on single track and some technical terrain. Runners must carry personal hydration and aid stations are cupless.
Trail marathon and half marathon in Amicalola Falls State Park featuring 605 steps on the Appalachian Approach Trail, marked singletrack, aid stations, timing, and free race photos.
A trail ultramarathon weekend near Springfield, MO with looped courses from 10 miles to 100 miles, onsite camping, a single basecamp aid station, and a 32 hour cutoff.
Trail loop ultras in Triangle VA offering 100 mile, 100K and 50K courses on mostly single-track terrain with stocked aid stations and set cutoffs.