United States
- Alabama 47
- Alaska 22
- Arizona 101
- Arkansas 26
- California 341
- Colorado 138
- Connecticut 46
- Delaware 9
- District of Columbia 11
- Florida 133
- Georgia 107
- Hawaii 3
- Idaho 23
- Illinois 87
- Indiana 62
- Iowa 43
- Kansas 34
- Kentucky 43
- Louisiana 26
- Maine 33
- Maryland 60
- Massachusetts 53
- Michigan 115
- Minnesota 60
- Mississippi 16
- Missouri 72
- Montana 37
- Nebraska 16
- Nevada 31
- New Hampshire 45
- New Jersey 54
- New Mexico 27
- New York 157
- North Carolina 130
- North Dakota 1
- Ohio 110
- Oklahoma 28
- Oregon 71
- Pennsylvania 181
- Puerto Rico
- Rhode Island 11
- South Carolina 55
- South Dakota 11
- Tennessee 66
- Texas 177
- Utah 86
- Vermont 34
- Virginia 149
- Washington 109
- West Virginia 26
- Wisconsin 74
- Wyoming 15
Trail Running Calendar United States 2026-2027
Explore the best trail runs in the United States for 2026-2027! Our updated list features 3923 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
A scenic trail 10K at Big Bear Mountain Resort featuring high altitude singletrack, technical climbs and wide views of the Southern Sierra.
Armadillo Trail Run on May 16, 2027 at Reveille Peak Ranch offers a 10K trail over narrow singletrack, slickrock and cactus; entries start at $59.
A 5K run/walk at Bethpage State Park featuring soft trail sections, live results, free finish line photos, and awards for top overall male and female finishers.
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.
A multi day trail running festival in Ripton, Vermont featuring races from a 9 mile course up to multi day marathon series and ultra distances. Held at Silver Towers Camp in Green Mountain National Forest with on site camping for a small fee.
A 24 hour trail running relay in Charlotte where teams of 2 to 12 score points by completing laps and bonus challenges, with team camping and meals included.
Charity trail event at Skyline Ridge Open Space Preserve offering 50K, 30K and 10K with all registration proceeds donated to UCSF cancer research.
A trail event at Columbus Park on May 22, 2027 offering an officially timed 5K, a virtual 5K option, and a 1 mile fun run, with proceeds benefiting the J & J Furry Friend Foundation to support Michigan animal rescues.
A wet and sandy 5K obstacle course at Pere Marquette Beach featuring 25 obstacles; entries include competitive and fun run options. Registration carries a fee and each entry includes a moisture-wicking shirt, with all proceeds supporting Muskegon Res..
Tough Mudder Philly on May 22, 2027 offers 15K and 5K obstacle runs, Infinity multi-lap options, group packages, and a Mudder Village spectator experience.
A looped hill endurance event in Cumberland Rhode Island where participants run or hike as many laps as possible within a 12 hour period. The top male and female who cover the greatest distance are named King and Queen of the Hill.
A trail run of about 10k that features roots, gravel, rough terrain and low hanging branches. Water stops are self serve and participants must bring their own hydration; wave starts are used to manage trail volume.
A 5K trail run/walk at Blydenburgh County Park with on-site refreshments, a free kiddie dash, virtual participation, and donations benefiting the Never Stop Running Foundation.
Looped trail races at Settlers Cabin Park from 5K to 50K on rugged, well marked trails with aid stations, timing, medals, and nearby spectator points.
An obstacle course event at Byron Motosports Park on May 22, 2027 offering 10K and 5K waves, Special Forces, Ruck division and a kids course, produced by a nonprofit honoring service members.
Trail race on Cahaba Mountain in Trussville, AL offering 5M and 5K single-track courses with aid stations, medals for all, and awards across age groups.