United States
- Alabama 55
- Alaska 15
- Arizona 108
- Arkansas 44
- California 357
- Colorado 131
- Connecticut 40
- Delaware 15
- District of Columbia 15
- Florida 175
- Georgia 97
- Hawaii 9
- Idaho 14
- Illinois 70
- Indiana 71
- Iowa 31
- Kansas 36
- Kentucky 71
- Louisiana 30
- Maine 26
- Maryland 71
- Massachusetts 61
- Michigan 103
- Minnesota 48
- Mississippi 15
- Missouri 65
- Montana 34
- Nebraska 21
- Nevada 27
- New Hampshire 30
- New Jersey 73
- New Mexico 29
- New York 143
- North Carolina 164
- North Dakota 2
- Ohio 91
- Oklahoma 44
- Oregon 83
- Pennsylvania 183
- Puerto Rico
- Rhode Island 8
- South Carolina 69
- South Dakota 6
- Tennessee 73
- Texas 242
- Utah 66
- Vermont 20
- Virginia 145
- Washington 124
- West Virginia 30
- Wisconsin 66
- 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 4013 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!
May 2027
Trail races in Sammamish on the wide Pipeline Trail and forest singletrack, offering 5K, 10K and half marathon distances with aid stations and a cupless policy.
Bellingham fundraiser on May 15, 2027 offering a half marathon, 10K and 3/6K on local trails to benefit YMCA Girls on the Run.
A 5k and 1.5 mile walk at Millbrook Vineyards & Winery on May 15, 2027, featuring a mostly grass cross country course and a post run wine pour.
Trail Run at Sly Park on May 15, 2027 offers distances from 5K to 50K, centralized parking at Scales Parking Lot, and finishes at Waterfall Trailhead for most races.
Two-day obstacle-course event in Boone IA offering 5K, 6 mile, and junior/parent 5K races with finisher items and Sunday youth and group offers.
Timed four hour and eight hour trail races at Chestnut Mountain Resort with looped courses, distance tracking, after party with music, and awards based on most miles completed.
Chip-timed 5K at Running Hare Vineyards with post-race wine, live music, shirts and finisher glass; walkers and children are welcome.
Trail 10K at Reveille Peak Ranch on May 16, 2027, featuring narrow singletrack, slickrock and cactus; spectator access and tickets from $59.
A 10K Spartan Trail run at Snow Summit in Big Bear featuring rocky, high altitude singletrack with technical climbs, scenic Southern Sierra views, and a three hour finish cutoff.
A 10K trail race at Reveille Peak Ranch featuring winding technical singletrack and central Texas terrain on May 16, 2027.
A 5K run and walk at Bethpage State Park featuring soft trail sections, live results and free finish line photos.
Mud Factor's Seriously Fun 5K mud and obstacle run returns to Mahon Ranch in Elk Grove on May 16, 2027, with adult and KIDZ family waves and required waivers for participants.
A technical mountain trail race in northern New Jersey offering a 50K with over 7000 ft gain plus 10 mile and 5 mile options, map requirements for the 50K, mandatory gear checks, and aid stations on the longer courses.
A chip timed 5k run/walk at Wild Mountain Winery on May 16, 2027, with race swag, a wine pour at the finish, and age group awards. The two-lap course runs through vineyards and scenic trails with uneven sections and short steep inclines.
A community 5K in Ellenville starting and finishing at Aroma Thyme Bistro, with a course along the base of the Shawangunk Mountains and a stretch on the newly resurfaced Rail Trail. Proceeds benefit local food pantries and youth scholarships.
A point-to-point trail event through New River Gorge National Park on May 16, 2027, offering 50 Mile and 50K ultra options plus relay, ruck, pacer, and virtual entries, finishing in historic Thurmond, West Virginia.
Scenic 5k, 10k and half marathon on the C&O Canal in Georgetown with chip timing, medals, technical shirts, a virtual option, and series points.
A set of one-mile trail races combining four laps and four drinks, held in Roanoke with proceeds supporting the UAW Local 2209 Veterans Committee.
Trail races at Green Lakes State Park on May 16, 2027 offering a roughly 10 mile course and a 5 mile loop with water on course and age group awards.