United States
- Alabama 55
- Alaska 15
- Arizona 108
- Arkansas 44
- California 357
- Colorado 131
- Connecticut 40
- Delaware 15
- District of Columbia 15
- Florida 175
- Georgia 97
- Hawaii 9
- Idaho 14
- Illinois 70
- Indiana 71
- Iowa 31
- Kansas 36
- Kentucky 71
- Louisiana 30
- Maine 26
- Maryland 71
- Massachusetts 61
- Michigan 103
- Minnesota 48
- Mississippi 15
- Missouri 65
- Montana 34
- Nebraska 21
- Nevada 27
- New Hampshire 30
- New Jersey 73
- New Mexico 29
- New York 143
- North Carolina 164
- North Dakota 2
- Ohio 91
- Oklahoma 44
- Oregon 83
- Pennsylvania 183
- Puerto Rico
- Rhode Island 8
- South Carolina 69
- South Dakota 6
- Tennessee 73
- Texas 242
- Utah 66
- Vermont 20
- Virginia 145
- Washington 124
- West Virginia 30
- 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 4013 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
Obstacle course weekend at Big Bear Mountain Resort with Sprint, Super, Beast, kids races, high-elevation terrain and an opportunity to earn a Trifecta in one weekend.
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 runs at Skyline Wilderness Park in Napa on May 15, 2027 with 10K, 21K, 30K, and 50K courses, aid stations, and a strict cupless policy.
Trail races at O'Neill Regional Park in Trabuco Canyon on May 15, 2027 offering distances from 10K to 50K over shaded singletrack and fire roads.
A timed Backyard Ultra at Butterfield Trailhead using hourly 4.167 mile loops in 4, 8, or 12 hour formats with live lap timing and finisher awards.
A trail ultramarathon in Napa around Skyline Wilderness Park offering a solo 50 mile route and a one-loop 25 mile option with cupless aid stations and on-course support.
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 backyard ultra in Muskogee where a die roll sets each hourly out and back loop from one to six miles until one runner remains.
Trail marathon and half marathon in Orem, Utah on May 15, 2027 featuring steep elevation, mostly mountain trail terrain, and marked aid stations.
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 in Titusville offering 5 mile, 13 mile, a stacked challenge, and a 2 mile youth race on trails in Oil Creek State Park.
A multi-hour trail ultra in Winona Forest, NY with 6, 12, 24 hour options and a 3 person 24 hour team on a 2.65 mile loop; camping and aid station provided.
A community 5K obstacle course and family fun day in Rocky Mount raising scholarship funds, featuring a mud pit, 15+ obstacles, and a kid’s 1-mile race.
Trail race in Lebanon, Indiana on 05/15/2027 offering 4, 8 and 12 mile options on paved rail to trail with wooded and open views. Community focused event with awards, post race refreshments, and inclusion of non binary competitors.
Trail races at Mineola Nature Preserve on a 4.5-mile loop offering 7K, 14K, 28K, 50K and a 7K ruck with aid stations and a 9-hour cutoff.
Trail races at Withlacoochee River Park with timed 10K and 5K, an untimed 1-mile fun run, and fundraising for local mental health programs.
A morning 5K held as part of the Fair Hill Scottish Games on May 15, 2027, in Elkton, MD, with on-field entries accepted, an entry fee that includes admission, and cash prizes plus trophies for top finishers.
A supported gravel ride and half marathon at Vermejo Park Ranch on May 15, 2027, featuring multiple course lengths, aid stations, private ranch roads, and specific equipment rules including eBike and aero bar restrictions.
A nine hour timed trail ultra on a 2.2 mile loop through Roosevelt Forest in Stratford, CT. Entry is limited to 50 participants and awards go to the runners with the most miles by the race end.