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!
August 2026
Trail races at Grand Targhee on August 29, 2026 cover 7.1 miles with 2,212 feet of vertical gain across Sport, Expert, and Pro divisions plus a volunteer category. Per race prizes and season points are awarded and the field is capped at 500.
Join this summer event at Magnuson Park in Seattle featuring traditional road races and an obstacle dash. Choose from distances ranging from a kids 400m to a 15k run in a beautiful Pacific Northwest setting.
Trail races at Salt Springs Park, Montrose PA, offering 5K, 10K and a 50K five loop course through old growth forest and wetlands.
Trail races in St. Croix Falls on August 29 2026 featuring marathon, half marathon and 10K on mixed single track and paved trails.
Waterville Valley trail races on August 29 2026 offering 50K, 23K, 4 mile and 1 mile events with aid stations, a cupless policy, and required gear for the ultra.
A trail event at Kansas Maze in Buhler, Kansas that sends runners through over 20 acres of sunflowers. Offers 5K and 1 mile options on August 29, 2026 with finisher shirts, medals, and on site festival perks.
Trail 5K and 10K at Mason District Park in Annandale with walkers welcome and both in-person and virtual registration options.
Family friendly mud run at Budds Creek Motocross Park on August 29, 2026 featuring a 5K course with obstacles, mud pits, slides and a festival style after party.
Trail races at Huddart Park, King's Mountain and Bear Gulch offer measured distances from a 50 yard kids dash to a 50K, with fees listed per distance and registration opening November 11, 2025.
Trail races in Steamboat Springs on August 29, 2026 offering 50k, 16 mile and 5 mile courses with high-elevation climbs and a cupless aid station policy.
Tanri Lake Race in Miramonte offers relay, individual, and 10K looped events at about 6,000 feet with prize categories and a Western States raffle for individual entrants.
ScoCo50 at Scott County Park features 50K, 10 mile and 5 mile summer trail races on multi-surface loops with stocked aid stations and online registration only.
The 3rd Annual LESS Society Table Rock Hike in Boise follows the Table Rock Trail for about 3.8 miles with roughly 900 feet of gain; proceeds fund scholarships for Idaho students.
Trail runs and walks on August 29 2026 at Phillips Creek State Forest offering 5K, 10K, and a newly added 25K over varied forest trails with creek crossings, mud, and rolling terrain.
Trail races at the Lewis and Clark Trailhead near St Charles include a 13.1 miles half plus separate 8 miles and 5 miles loops. Aid stations offer water and Tailwind and each runner receives a reusable cup at packet pickup.
A one day community trail running festival in Los Angeles on August 29, 2026 with a 4 mile group run, expo, vendors, and a raffle.
Backyard Ultra in Bussey IA with 4.167 mile laps each hour and a 12 hour cap, where the winner is the last runner to complete an extra lap.
Trail races at Mt. Airy Forest in Cincinnati include 5K, 10K, a 13.1 Miles half marathon and 30K. Finishers get medals, half marathon and 30K include shirts, and the event awards series points across the ATR season.
A community trail event at the Arapahoe County Fairgrounds on 08/29/2026 with a 5K run, a family 5K walk that allows leashed dogs, and a kids 1 mile plus demonstrations, vendors, and a pancake breakfast.