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
A scenic 5K in Versailles KY over dirt, gravel and paved paths with rolling hills, plus a recovery rally featuring speakers and a Wall of Remembrance.
Low-key evening trail series in Forest Park with three five race seasons, 4 to 7 mile courses, standings for regular participants, and a post season awards party.
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 lap relay in Charlotte where teams score points for completed laps and bonus challenges, with team camping and meals included.
Charity trail event on May 22, 2027 in Los Gatos, CA offering 50K, 30K and 10K courses with proceeds to UCSF cancer research.
Trail 5K, virtual 5K, and 1.5 mile fun run at Columbus Park supporting J & J Furry Friend Foundation with teams, donations, awards, and on trail conditions.
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, 5K and Infinity obstacle courses plus finisher items, spectator village and group options.
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 trail 5K at Blydenburgh County Park supporting the Never Stop Running Foundation, with on-site refreshments, parking options, and a virtual participation choice.
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.
A technical single track trail event in Trussville AL on May 22 2027 with a single 5 mile loop, a 5K option, aid stations and a 150 runner cap.
A multi-distance trail running event in the Salt Lake City foothills on May 22, 2027 featuring 50-mile, 50K, half marathon, 10K, and a 2K family loop.
Trail races in Lowell, NC on May 22, 2027 offering 50K, 25K and 5K on repeated three mile high-elevation loops with a ten hour cutoff.
A Backyard Ultra at Sparks Marina with 4.167 mile yards each hour, mini 3/6/12/24 hour options, and qualifying spots for national and world backyard events.
A three-hour Last Runner Standing backyard ultra in Clarkston MI on May 22, 2027, featuring a flat closed park loop around Crooked Lake with camping and park amenities.
Ultramarathon with multiple time and distance options in Richfield OH on a 2.92 mile loop with 225 ft gain; pacers allowed and age minimums apply.
A community Scout Fest in Douglassville with a timed 5K, a 1.5 mile walk, festival activities, and fundraising for local Scout programs.
Second annual Mission Trails Twilight Runs feature 50K and 25K loop races plus a 5K out-and-back, starting near sunset at Mission Trails and limited to 300 runners.