United States
- Alabama 56
- Alaska 17
- Arizona 110
- Arkansas 41
- California 381
- Colorado 140
- Connecticut 52
- Delaware 15
- District of Columbia 15
- Florida 172
- Georgia 120
- Hawaii 7
- Idaho 19
- Illinois 93
- Indiana 69
- Iowa 46
- Kansas 41
- Kentucky 47
- Louisiana 38
- Maine 34
- Maryland 62
- Massachusetts 59
- Michigan 136
- Minnesota 61
- Mississippi 18
- Missouri 71
- Montana 36
- Nebraska 19
- Nevada 33
- New Hampshire 47
- New Jersey 71
- New Mexico 31
- New York 162
- North Carolina 156
- North Dakota 1
- Ohio 111
- Oklahoma 48
- Oregon 81
- Pennsylvania 218
- Puerto Rico 1
- Rhode Island 10
- South Carolina 71
- South Dakota 9
- Tennessee 74
- Texas 210
- Utah 80
- Vermont 31
- Virginia 165
- Washington 133
- West Virginia 34
- Wisconsin 73
- 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 4388 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 2027
Night trail races in Dixon IL on a 5 mile loop with 5 mile, 10 mile, 15 mile and 3 person relay options, one aid station and a participant tee.
Community run, walk, and bike event at Lake Antoine County Park that raises funds for Special Olympics with paved and unpaved course options.
A community running event in Felton, California with a 10K through Henry Cowell Redwoods and a one mile kids race plus a pancake breakfast.
August races in Ouray County centered in Ridgway featuring a half marathon, 10K and kids fun run on mostly dirt roads; proceeds benefit the Mount Sneffels Education Foundation.
Night trail races at Holder Mine Campground offering 5, 10 and 20 mile single track loops with required headlamps and marked trails.
Community 5K on August 21, 2027 at Woodland Lake Park, a 3.1 mile natural surface loop with a Superheroes vs Villains theme.
Trail races at Camp Ondessonk in the Shawnee National Forest offering 100 mile, 100K, 50K, night 50K and a half marathon on technical singletrack with waterfalls.
Trail-focused half marathon and 5K in Fraser, Colorado, on unpaved roads and trails, with chip timing and proceeds benefiting the Shining Stars Foundation.
Run solo or join a team for a relay race featuring four laps around the scenic and mostly flat trails of Lake Padden Park.
An hourly-loop backyard ultra at Winona State Forest where runners repeat a 4.167 mile trail lap and continue until only one runner completes the final lap.
Trail races on the Switchgrass Mountain Bike Trail at Wilson State Park featuring a roughly 32 mile 50k and a 13 mile half with two main aid stations.
A 13.7 mile out and back on the Dipsea Trail from Stinson Beach to Mill Valley with handicapped starts and annually adjusted wave assignments.
Trail event at Stokes State Forest on August 22, 2027 offering 5K, 10K, 10K ruck, and a 17 mile option plus military discounts and a hardship entry.
10th Annual fundraising 5K trail run and one mile Move As You Please at Thorncroft Farm in Malvern with varied terrain and an after party with live music and food trucks.
Trail race in North Bend, PA offering 14 mile and 7K courses through Sproul State Forest with a strict six hour cutoff.
Trail marathon and half marathon on single track routes from Butterfield Trailhead with marked aid stations, locally made medals, and free online race photos.
Two-day obstacle race weekend at Summit at Bechtel Reserve in Glen Jean WV featuring Sprint, Super, Beast and kids races across steep terrain and water features.
Weekend obstacle race at Mahon Ranch, Elk Grove, featuring Sprint 5 km, Super 10 km, kids races, Hurricane Heat formats, and spectator access.
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.