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
A multi-day timed running festival at the Sussex County Fairgrounds with a certified 1-mile loop, options from 6 to 144 hours plus Marathon and 50K, night lighting, central aid station, camping and electronic lap timing.
Weeklong trail ultra in Los Olivos CA with 100 mile and shorter loop races, onsite camping, aid stations and chip lap counting.
Trail races in Rothrock State Forest, State College PA, with 53.3 km and 26.9 km courses in May 2027 amid sandstone ridges and rhododendron tunnels.
A three distance ultrarun in Kanab Utah from May 14 to 16, 2027 across sand dunes, red rock canyons and high desert terrain with long cutoff times.
A 103.54 mile trail ultramarathon near Blue Ridge, GA, with 33,000 feet of ascent, 20 aid stations, and entry restricted to runners who meet qualifying requirements.
Obstacle course weekend at Reveille Peak Ranch in Burnet, Texas, with Sprint and Super races, kids courses, a 12 hour heat, varied rocky and hilly trail terrain.
The Bear Crawl OCR is a locally operated obstacle course event in Morganton, North Carolina, held at a motocross training facility. It offers one- to six-mile courses with rolling terrain, a dirt bike track, creek and pond crossings, and several obst..
Team based two hour 10K on the 575 acre Versailles farm with 18 checkpoints including biking, zipline, archery and canoeing; proceeds fund scholarships.
Obstacle race weekend at Big Bear Mountain Resort with Sprint 5 km, Super 10 km, Beast 21 km, kids races, and a Trifecta opportunity.
A multi-distance trail event at Possum Kingdom Lake with varied terrain, looped courses up to 69 miles, cupless aid stations, and distance-specific awards including a buckle for the 69 mile finishers.
At John Hunt Park in Huntsville a free, capped event offers multiple timed formats including a 24 hour option. Runners use a rubberized 1.7 mile loop with aid stations, food trucks, overnight camping, chip timing, and awards.
Trail races at Skyline Wilderness Park near Napa on May 15, 2027 offering 10K, 21K, 30K and 50K courses with new trails, aid stations, and a cupless policy.
Trail races at O'Neill Regional Park with multiple distances through Trabuco and Live Oak Canyons and a $5 parking fee.
Timed backyard ultra at Butterfield Trailhead in Herriman UT with 4.167 mile loops and 4 hour, 8 hour, and 12 hour formats.
A multi loop trail ultra in Napa’s Skyline Wilderness Park covering about 50 miles through oak forests, exposed ridgelines and the Suscol Headwaters trail system.
Rumble on the Ridge is a backyard ultra style last person standing race near Arena, Wisconsin, run on a 1 to 1.25 mile loop with 20 minute laps. The course reverses direction every four hours and includes 250 to 300 feet of elevation gain per lap.
A last-person-standing race in Muskogee where a live die roll sets each hourly loop distance on a flat paved out-and-back course.
A mountain trail marathon and half marathon in Orem, Utah on May 15, 2027, featuring significant elevation gain, marked flagging, multiple aid stations, and a drop bag option.
Trail races at Mueller State Park from 10k to marathon plus two 12 hour timed events that use colored ball draws to set loop sequences. All courses are single and double track with no pavement and feature an aid station.
Trail races at Drake Well Museum and Park in Titusville, PA offering 5 mile, 13 mile, a stacked challenge, and a youth 2 mile on trails in Oil Creek State Park.