United States
- Alabama 56
- Alaska 17
- Arizona 110
- Arkansas 45
- California 363
- Colorado 136
- Connecticut 43
- Delaware 14
- District of Columbia 15
- Florida 176
- Georgia 101
- Hawaii 9
- Idaho 15
- Illinois 74
- Indiana 73
- Iowa 34
- Kansas 36
- Kentucky 72
- Louisiana 33
- Maine 28
- Maryland 67
- Massachusetts 63
- Michigan 105
- Minnesota 48
- Mississippi 16
- Missouri 67
- Montana 34
- Nebraska 21
- Nevada 26
- New Hampshire 30
- New Jersey 73
- New Mexico 27
- New York 148
- North Carolina 167
- North Dakota 2
- Ohio 98
- Oklahoma 40
- Oregon 85
- Pennsylvania 193
- Puerto Rico 1
- Rhode Island 10
- South Carolina 71
- South Dakota 6
- Tennessee 74
- Texas 247
- Utah 67
- Vermont 22
- Virginia 152
- Washington 127
- West Virginia 30
- Wisconsin 70
- Wyoming 8
Trail Running Calendar United States 2026-2027
Explore the best trail runs in the United States for 2026-2027! Our updated list features 4119 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 2027
A community running event in Felton, California with a 10K through Henry Cowell Redwoods and a one mile kids race plus a pancake breakfast.
Trail races at Standley Lake in Westminster CO offering distances from 6K to 50K on 100% dirt courses with aid stations and parking at Wayne Carle Middle School.
A high altitude 10K in Leadville on August 15, 2027 with an out and back course, one aid station, and awards for overall and age group finishers.
A four race midweek trail series at Lory State Park in August 2027 offering 5K, 10K and 12K options, post race food and beverages, and series awards.
Trail event in Marquette offering 50K, 50 Mile and a kids 1 Mile with marked trails, cupless aid stations, and volunteer-run support.
A 100 mile mountain ultramarathon near Durango, Colorado, featuring high alpine terrain, about 19,000 feet of climbing, required safety gear, and satellite tracking.
A mountain road running event in Ouray County on August 21, 2027 featuring a half marathon, 10K and a kids fun run on mostly dirt roads.
Night trail races at Holder Mine Campground offering 5, 10 and 20 mile single track loops with required headlamps and marked trails.
Community 5K on August 21, 2027 at Woodland Lake Park, a 3.1 mile natural surface loop with a Superheroes vs Villains theme.
Multi distance trail race weekend at Camp Ondessonk in Ozark, IL featuring 100 mile, 100K, 50K, Night 50K and a heavy half marathon.
Trail-focused half marathon and 5K in Fraser, Colorado, on unpaved roads and trails, with chip timing and proceeds benefiting the Shining Stars Foundation.
A team or solo relay around Lake Padden with four 2.59 mile laps on mostly flat wooded trails and age based team categories.
Backyard Ultra at Winona State Forest near Mannsville NY where runners repeat a 4.167 mile loop every hour and continue until one runner remains.
Half marathon and 50K on the single-track Switchgrass trail at Wilson State Park, with staffed aid stations, heavy course marking, and set cutoffs for each distance.
A 13.7 mile out and back on the Dipsea Trail from Stinson Beach to Mill Valley with handicapped starts and annually adjusted wave assignments.
Trail races in Steamboat Springs with 50K, 16 mile and 5 mile options through alpine forests and substantial elevation gain.
Historic 100 mile out and back trail race in Leadville on August 21, 2027 with high alpine terrain, Hope Pass, and a lottery Dec 1–15, 2026.
Trail races in the Olympic National Forest near Quilcene, WA, featuring 100K, 50K, 25K, 10K and ruck divisions across single-track and forest roads.
Point to point trail event from Lake Kachess to Salmon La Sac offering 50K and 50M routes with steep technical terrain and large elevation gain.