United States
- Alabama 47
- Alaska 22
- Arizona 104
- Arkansas 27
- California 344
- Colorado 139
- Connecticut 46
- Delaware 9
- District of Columbia 11
- Florida 135
- Georgia 107
- Hawaii 3
- Idaho 25
- Illinois 88
- Indiana 62
- Iowa 43
- Kansas 34
- Kentucky 43
- Louisiana 29
- Maine 33
- Maryland 60
- Massachusetts 51
- Michigan 115
- Minnesota 60
- Mississippi 16
- Missouri 72
- Montana 37
- Nebraska 18
- Nevada 31
- New Hampshire 45
- New Jersey 54
- New Mexico 28
- New York 155
- North Carolina 130
- North Dakota 1
- Ohio 110
- Oklahoma 28
- Oregon 71
- Pennsylvania 180
- Puerto Rico
- Rhode Island 11
- South Carolina 56
- South Dakota 11
- Tennessee 69
- Texas 181
- Utah 86
- Vermont 34
- Virginia 149
- Washington 111
- 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 3951 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!
September 2026
A multi-distance, self-supported mountain bike event in Marquette County with a coach-led Marji Camp and race weekend in September, produced by the nonprofit 906 Adventure Team.
A 100 mile trail race in North Ogden, Utah on Sep 18 and 19, 2026 with 97% single track, about 22k elevation gain, live GPS tracking and a 36 hour cutoff.
A community fundraiser at Goose Island Campground in Stoddard, WI offering timed 6 and 24 hour running and walking. Participants set their own goals, from a single loop to more than 100 miles in 24 hours.
Multi-day timed ultras at Shortsville Reindeer Farm on a one mile grass and trail loop. Multiple timed options, an on-course aid barn, and belt buckles for finishers who complete 100 loops; proceeds support ROCovery Fitness.
A three-day trail festival at Standing Boy Trails in Columbus GA featuring a Night Time Vertical 5K, 10 mile races, a Canicross 10 mile, and a 50K.
A repeated 4.18 mile loop race at Smith Ranch where runners must finish each hourly loop to stay in the event; awards include a trophy buckle and participant amulets.
The 2026 Air Force Marathon celebrates its 30th anniversary at Wright Patterson Air Force Base in Dayton, Ohio. Events range from a Boston qualifying marathon to a 1K kids run and include virtual options plus a weekend expo and festival.
A 24 hour event in Salisbury where individuals and teams of four run repeated 5K loops each hour, earning points for finishes and extra points during the overnight window.
A trail running weekend in Dalton, Georgia featuring 100, 50, 35, and 18 mile races on the Pinhoti Trail with crew-accessible loop sections.
Mile Madness is a looped trail endurance event in Auburn, California, held September 18-21, 2026. Timed events run from 3 to 72 hours with a 0.75 mile loop and options including a 100 mile race plus on-site aid and amenities.
A two day ultrafest in Moorhead on September 18 and 19, 2026 offering 3, 6, 12 and 24 hour run and ruck events on a roughly 5 mile lap with aid stations, finisher items, and awards including buckles for 100 mile and 100k finishes.
A costume friendly 5K run on gravel trails at Blake Farm that passes haunted attractions and zombie paintball scenes. Entry includes a donut, cider, t-shirt, small pumpkin, and admission to Spookyland.
An evening 5K series at Arizona Falls with three monthly races that support Child Crisis Arizona. Live events are chip timed with age group awards and raffle prizes, plus a virtual option with collectible medals.
Three day festival in Rome, GA combining a choose your distance run on The Loop with sauna sessions, yoga, live music and wellness talks.
Savage Race in Dallas Georgia on September 19 2026 features a 3+ mile Blitz and a 5 to 7 mile race with multiple obstacles; parking is $20.
A weekend of mountain obstacle course races in Killington VT featuring Sprint, Beast, Ultra and kids distances on September 19 and 20, 2026.
A two-day Spartan obstacle racing weekend in Monroe WA on Sep 19 to 20 2026 featuring wooded trail courses from kids races to a 21 km Beast.
Marathon and half marathon along the Jordan River Parkway in South Jordan, UT, mostly paved trails with aid stations, local finisher medals, and a 300 runner cap.
13 mile mountain trail run in Ouray, CO on September 19, 2026; a fundraiser for the Ouray School with cupless water stations and packet pickup before the race.