United States
- Alabama 47
- Alaska 22
- Arizona 102
- Arkansas 26
- California 342
- Colorado 140
- Connecticut 46
- Delaware 9
- District of Columbia 11
- Florida 135
- Georgia 107
- Hawaii 3
- Idaho 24
- Illinois 88
- Indiana 62
- Iowa 43
- Kansas 34
- Kentucky 43
- Louisiana 28
- Maine 33
- Maryland 60
- Massachusetts 53
- Michigan 115
- Minnesota 60
- Mississippi 16
- Missouri 72
- Montana 37
- Nebraska 17
- 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 69
- Texas 180
- Utah 86
- Vermont 34
- Virginia 149
- Washington 110
- 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 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.
Multi-distance trail event in the Salt Lake City foothills in May 2027 featuring singletrack, substantial climbs and widespread mountain and city views.
Trail event in Lowell, NC with looped 50K, 25K and 5K courses, steep climbs, staffed aid stations and a ten hour cutoff.
Runners complete 4.167 mile laps each hour at Sparks Marina until one person remains; 3, 6, and 12 hour mini races are also offered and the event is a Bronze Ticket qualifier.
Last Runner Standing backyard race at Independence Oaks Park in Clarkston, MI on May 22, 2027, featuring a flat looped course around Crooked Lake, camping and entry fees USD 66 to 131.
Multiple timed ultramarathon options on a 2.92 mile gravel and trail loop near Richfield, Ohio. Part of the proceeds supports capital improvements at the Richfield Heritage Preserve.
Scout Fest on May 22, 2027 at Amity Community Park features a timed 5K, a 1.5 mile walk, and a family festival with food trucks and inflatables. Proceeds support local Scout leadership and programming.
Twilight trail races at Mission Trails Regional Park offering 25K and 50K options with technical single track, significant elevation gain, and sections run after sunset.
Scenic loop 5K and 10K at Sky Meadows Turners Pond in Delaplane VA with views of fields and streams; virtual options and walkers are welcome.
A 20 mile loop through Fair Hill Natural Resources Area on May 22, 2027 with aid stations, a finisher medal and complimentary on site parking.