United States
- Alabama 55
- Alaska 15
- Arizona 109
- Arkansas 44
- California 354
- Colorado 131
- Connecticut 38
- Delaware 16
- District of Columbia 14
- Florida 174
- Georgia 97
- Hawaii 9
- Idaho 12
- Illinois 69
- Indiana 71
- Iowa 30
- Kansas 35
- Kentucky 71
- Louisiana 29
- Maine 26
- Maryland 72
- Massachusetts 55
- Michigan 112
- Minnesota 48
- Mississippi 15
- Missouri 64
- Montana 34
- Nebraska 22
- Nevada 27
- New Hampshire 29
- New Jersey 74
- New Mexico 28
- New York 136
- North Carolina 165
- North Dakota 2
- Ohio 93
- Oklahoma 44
- Oregon 80
- Pennsylvania 175
- Puerto Rico
- Rhode Island 8
- South Carolina 68
- South Dakota 7
- Tennessee 72
- Texas 242
- Utah 68
- Vermont 21
- Virginia 141
- Washington 123
- West Virginia 29
- Wisconsin 69
- Wyoming 7
Trail Running Calendar United States 2026-2027
Explore the best trail runs in the United States for 2026-2027! Our updated list features 3997 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 one of the fastest trail races in the world on the flat and smooth loops of Brazos Bend State Park. Choose from distances ranging from a kids 1K to a 100 mile Western States qualifier.
Trail event at Timber Pointe Nature Center in Hudson IL on 12/05/2026 offering 8K, 4K and a multi-lap 3 hour format; partial proceeds benefit the nature center.
Two races in Willis, Texas combine a family friendly 5K with a Last Man Standing ultra where runners repeat a 5K loop every 50 minutes until one remains.
A candy themed trail event at Candy Mountain in Richland WA offering 1.25 mile and 3.5 mile routes, a ruck challenge, and a virtual option to support Mirror Ministries.
Run through the scenic forests of the Redmond Watershed Preserve in a festive 5 mile or half marathon trail race featuring smooth trails and rolling hills.
A season challenge to finish three 50-mile trail ultras on the Arizona Trail, with proceeds benefiting the Arizona Trail Association and a custom finisher garment.
A winter trail event at Governor Dodge State Park offering 50K, 25K and 15K routes on mixed horse and prairie trails with marked courses and multiple aid stations.
30K and 50K trail races at Lake Norman State Park in Troutman NC with stocked aid stations, finisher medals, and a nine hour cutoff.
A four-race winter trail series in Dixon, IL from December to March featuring 5K, 10K, 15K and 20K distances with series awards and completion apparel.
High Desert Ultra in Ridgecrest, California on December 5, 2026 features 50K, 30K and a new 10K through the Goldbug mining area set in high desert scenery.
A backyard ultra at a Texas ranch where runners complete a 4.1667 mile loop each hour until one person remains as the official finisher.
A trail 6K through Institute Woods with a non-competitive 3K option for paces over 15 minutes per mile. Registrations are limited to 200, a fee applies, and post-run refreshments are provided.
Trail races of 30K, half marathon and 10K at China Camp State Park near San Rafael, with chip timing, cupless aid stations, and bay and Mt. Tam views.
Free grassroots marathon and half in Millinocket, Maine with USATF certified loop courses, chip timing, volunteer organization and optional donations to cover race expenses.
Timed 6, 12 and 24 hour runs plus a virtual option on a certified 800 m paved loop at Grapevine Lake, with on-course aid stations, free camping, participant medals, and timing provided by a professional timing company.
Trail races at South Mountain Reservation feature 5K, 10K and 13.1 miles on looped courses over fire roads, single track, hills and pavement, with aid about every three miles and race day registration available.
Trail running event in Wildwood, Missouri on December 5, 2026, featuring marathon, half marathon and a new Wildwood Trail F.L.A.T Out Tenkay route.
A December trail event at High Bridge with 100k, 50k and a half marathon, aid stations, drop bag support, and pacing rules for longer distances.
A single-loop 16.8 mile course preview in Lakeland FL with unstaffed water stops and a reserved primitive campground the night before.
Trail race at Broemmelsiek Park offering 5 mile and 10 mile loop options with post-race music, beer for 21+, snacks and a bonfire.