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
Flat out and back half marathon and 10K on the limestone Great Western Trail with a 25 plus year history and proceeds supporting local mental health charities.
Trail races on May 2, 2027 at F.D. Roosevelt State Park in Pine Mountain GA offering 50K, 25K and 10K with medals and a postrace hotdog cookout.
Collegeville Ultra runs 10 mile, 20 mile and 50K trail races through Saint John’s Abbey Arboretum with cupless aid stations and finisher medallions.
Trail running on May 2, 2027 at Addison Oaks Park offering half marathon and 5K courses, race amenities, awards, and a 300 participant limit.
Trail races at Greenwood Furnace State Park in Huntingdon PA on May 2, 2027 featuring a figure eight course with a half marathon and a 12K option.
A three-day trail event in Wausau with a repeating 4.167 mile loop for Limitless, one- and two-loop races, plus a free kids race.
A multi day team trail relay at Zion Ponderosa Ranch with mixed singletrack and jeep trails, on site village amenities, camping and several team entry options.
Trail races at Yellow River State Forest on May 7–8, 2027 include 5K, 10K and half marathon options with timed results and age-group awards.
Hellbender 100 in Old Fort NC is a 100 mile mountain trail race through the Black Mountains with roughly 48,000 ft of elevation change and a 39 hour cutoff.
Trail weekend at Tiger Mountain near Issaquah featuring an ascent, a 50k, a three person relay and a combined Big Cat option.
A self supported marathon in San Diego on May 8, 2027 held in memory of a runner; no official timing or aid stations and participants are on their own.
Trail marathon and 10 mile on the Sag Valley Trail at Cap Sauers Nature Preserve in Palos Hills, IL, with wide horsetrail, notable elevation gain, and staffed aid stations along the routes.
A women focused trail running event at Cheyenne Mountain State Park on May 8, 2027 offering distances from 4 mile to 50K across limestone, singletrack and ridgelines, with cupless aid stations and race packet pickup the day before.
A 13.1 mile point to point half marathon through Napa Valley vineyards, mostly on private winery roads, finishing in Yountville's Wine Village.
Timed 6 and 12 hour trail events with new relay formats on a rugged 5.25 mile loop at Valley Falls State Park, supporting the Innocent Lives Foundation.
Trail races near Fort Collins offering 25 and 50 mile options on mostly singletrack through Lory State Park and Horsetooth Mountain Park, featuring about 5,500 ft or 11,000 ft of vertical gain, staffed aid stations, and marked trails.
A multi-distance event in Lewes, Delaware with 5K, 10K and half marathon options plus race walk and heavy march categories. The weekend includes an educational exhibit, vendors and live music while supporting wounded warriors and homeless veterans.
A community trail run and hike on May 8, 2027 at the Point Arena and Stornetta Lands, co-hosted by ACORN and Pacific Community Charter School. Proceeds support the Students Protecting the Coast environmental education program.
Trail To Recovery 5K and 1 Mile run/walk in Norman, OK supports local recovery court programs and mental health services. The trail course runs through Ruby Grant Park and includes awards and finisher medals for participants.
Camp Mountain Laurel offers a family color run plus a 5K trail run and 5K trail walk at Hamden/North Haven YMCA and New Haven YMCA Youth Center on May 8, 2027; registration opens Feb 19 and first 100 pre-registrants receive a giveaway.