United States
- Alabama 48
- Alaska 16
- Arizona 103
- Arkansas 38
- California 371
- Colorado 142
- Connecticut 50
- Delaware 14
- District of Columbia 10
- Florida 161
- Georgia 113
- Hawaii 4
- Idaho 20
- Illinois 90
- Indiana 59
- Iowa 46
- Kansas 38
- Kentucky 50
- Louisiana 37
- Maine 35
- Maryland 60
- Massachusetts 54
- Michigan 127
- Minnesota 62
- Mississippi 18
- Missouri 66
- Montana 35
- Nebraska 20
- Nevada 34
- New Hampshire 46
- New Jersey 66
- New Mexico 31
- New York 163
- North Carolina 147
- North Dakota 1
- Ohio 111
- Oklahoma 44
- Oregon 80
- Pennsylvania 206
- Puerto Rico
- Rhode Island 11
- South Carolina 68
- South Dakota 11
- Tennessee 68
- Texas 204
- Utah 80
- Vermont 32
- Virginia 166
- Washington 120
- West Virginia 32
- Wisconsin 72
- Wyoming 11
Trail Running Calendar United States 2026-2027
Explore the best trail runs in the United States for 2026-2027! Our updated list features 4202 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!
August 2026
Free guided trail run at Seacrest Scrub covering about 3 miles on mainly sandy natural trails through pines and scrub, with registration closed and a waiting list available.
Eighth annual Cabernet Canter Cross Country at Talon Winery features 5K and 10K races, finisher awards with a wine ticket, plus live music and an after-party.
A mountain running weekend in Hatcher Pass with a highly technical 37K Skeetawk Skyline Scramble still scheduled; shorter races were cancelled for 2026.
A weekend of trail races at Camp Mack in Newmanstown PA featuring a night 3.5 mile race, chip timed 12/6/3 hour endurance on a 3.4 mile loop, and free kids races with two course options.
Two day team trail relay at Soldier Hollow Nordic Center near Midway Utah with ridgeline singletrack and views of Mount Timpanogos and Deer Creek Reservoir.
A long-distance team relay across Oregon from Mount Hood to the Pacific beaches, run by 8 to 12 member teams with fixed rotation and safety requirements.
Nighttime 5K and 10K loop races on a grassy jeep track along the Trinity River in downtown Fort Worth, with water stations, chip timing, and finisher medals.
A night trail run on private ranch trails in Alpine, California, under reflective course markers. Multiple loop distances are offered, headlamps are required, camping is available and aid stations will be illuminated.
Fundraiser in Atglen, PA with a grass course 5K, a 1 mile walk, and kids races for grades K to 6 on August 28, 2026.
NorCal Spartan Event Weekend at Mahon Ranch features a Super 10K, a Sprint 5K, kids races across two days, and spectator access in Elk Grove, California.
Trail 5K and 10K at Dirt Farm Brewing in Bluemont VA on August 29, 2026, with virtual options and tiered entry fees.
Tough Mudder Chicago on August 29, 2026 at Richardson Adventure Farm offers 5K, 15K and an 8 hour Infinity course with multiple obstacles and a Mudder Village.
Two-day Spartan obstacle weekend at Summit at Bechtel Reserve with Sprint, Super, Beast, kids races, plus an obstacle workshop and spectator access.
Trail races on the single track Switchgrass Mountain Bike Trail at Wilson State Park, offering a 13(ish) mile half marathon and an approximately 32 mile 50K on exposed, hilly terrain.
Trail races on remote loop courses in Mount St. Helens National Volcanic Monument with 50K, 20 mile and half marathon options and lake and ridgeline scenery.
A 10 hour endurance run at Bluhm County Park on August 29, 2026, using a 4 to 4.1 mile loop with hourly cutoffs and a chip based prize system.
Trail race in Chequamegon-Nicolet National Forest offering 100-mile, 100k and 50k courses with campground arrangements for participants.
A muddy 3 mile obstacle run at Phil Moore Park on August 29, 2026, with 20 or more obstacles and a free kids play area.
A point to point 50 mile trail ultramarathon in Vowinckel PA along the northern Baker Trail with single track, 6,200 ft of climbing, and individual or relay entries.
A Last Man Standing ultrarun in Half Way MO where each 4.167 mile lap shortens the cutoff by one minute, on a rural rolling course with two aid stations and on site camping.