United States
- Alabama 55
- Alaska 15
- Arizona 109
- Arkansas 44
- California 352
- Colorado 130
- Connecticut 38
- Delaware 16
- District of Columbia 14
- Florida 174
- Georgia 97
- Hawaii 9
- Idaho 12
- Illinois 68
- Indiana 71
- Iowa 30
- Kansas 35
- Kentucky 69
- Louisiana 29
- Maine 25
- Maryland 71
- Massachusetts 55
- Michigan 110
- Minnesota 48
- Mississippi 15
- Missouri 64
- Montana 33
- Nebraska 21
- Nevada 27
- New Hampshire 29
- New Jersey 73
- New Mexico 28
- New York 135
- North Carolina 164
- North Dakota 2
- Ohio 89
- Oklahoma 44
- Oregon 79
- Pennsylvania 174
- Puerto Rico
- Rhode Island 8
- South Carolina 68
- South Dakota 6
- Tennessee 72
- Texas 242
- Utah 68
- Vermont 20
- Virginia 141
- Washington 121
- West Virginia 29
- 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 3963 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!
December 2026
Trail races at Oakes Quarry Park in Fairborn on 12/12/2026 with a 1.55 mile fun run plus 5K, 10K and 15K looped courses; medals for all finishers.
Trail race at Magnolia Ranch, Pilot Hill CA on December 12, 2026 offering 5K to 50K on dirt single track with rolling hills, three aid stations, and pink ribbon course markings.
A backyard ultra at Blydenburgh County Park: runners repeat a 4.167 mile loop each hour until one completes the final loop; proceeds support Long Island trail maintenance.
Blue Canyon Trail Run in Socorro on December 12, 2026 offers 18 miles and 6.2 miles trail races with aid stations, awards, a participant meal, photos, and charitable proceeds.
Scenic loop race around Angel Island with a Half Marathon (two loops) and a single loop 10K, limited to 400 participants and includes ferry fare.
Trail event in Cool, CA on December 12, 2026 offering 50K and half marathon courses with aid stations, live tracking, maps, and finisher medals.
Timed 6 hour and 12 hour loop trail run near Mt. Woodson in Ramona with a roughly 1.5 mile singletrack lap, significant climbing, and one aid station per lap.
Trail races on Wolf River Trails in Memphis offering a Half Marathon and a 7 mile route with stocked aid stations and winter forest singletrack.
Four winter trail races at Shelby Farms Park with in person and virtual options, multiple distances, series points, shirts and age group awards.
A team relay finale of the Grand Prix Series on December 12, 2026 at Atlanta Track Club where teams of 2 to 6 run laps on a 1.3 mile loop over three hours.
A 50K trail race in the Phoenix Mountain Preserves on Dec 12, 2026, featuring GPX navigation, technical terrain, 5,500+ feet of gain, and a 50 runner field.
A winter trail event at Findley State Park featuring a 10.5 mile single lap technical loop, open to runners and hikers with an aid station and postrace meal.
A 5K run, 5K walk and fun run at Camp Wesley Pines in Hazlehurst on December 12, 2026, featuring a mixed road and trail course with proceeds for camper scholarships.
Trail 3.1 and 6.2 mile events in Morris Plains with hot cocoa at the finish and proceeds benefiting St. Jude Children's Research Hospital.
December 12 2026 trail race in Schiller Woods Chicago, a 4.5 mile off-road course with on-site water, post-race chili and brews, plus age group and overall awards.
Trailblaze Challenge Trailfest at Table Rock State Park features 22, 12 and 2 mile hikes supporting Make A Wish South Carolina with training resources and a celebration festival.
Trail races at Camp Liberty in Oakwood, TX on December 12, 2026 offering 1-mile, 5K and 10K options with published registration fees.
Tallahassee Ultra Distance Classic on December 12, 2026 features 50K, 25K and 10K races with medals for finishers and awards by overall and age-group categories.
A 12 hour endurance festival in Corpus Christi offering 5K to ultramarathon options plus hourly 5K challenges, timed laps, medals, vendors, and on-site support.
A chip timed 5K and walk in Ridgeland with a mixed surface course, age group medals, holiday vendors, T shirts for early registrants, and proceeds supporting the school PTO.