United States
- Alabama 54
- Alaska 14
- Arizona 110
- Arkansas 44
- California 363
- Colorado 135
- Connecticut 44
- Delaware 14
- District of Columbia 15
- Florida 174
- Georgia 101
- Hawaii 9
- Idaho 15
- Illinois 73
- Indiana 72
- Iowa 35
- Kansas 36
- Kentucky 73
- Louisiana 33
- Maine 24
- Maryland 67
- Massachusetts 64
- Michigan 103
- Minnesota 47
- Mississippi 16
- Missouri 70
- Montana 34
- Nebraska 20
- Nevada 26
- New Hampshire 30
- New Jersey 73
- New Mexico 28
- New York 148
- North Carolina 168
- North Dakota 2
- Ohio 98
- Oklahoma 40
- Oregon 84
- Pennsylvania 193
- Puerto Rico 1
- Rhode Island 10
- South Carolina 70
- South Dakota 6
- Tennessee 74
- Texas 246
- Utah 70
- Vermont 22
- Virginia 154
- Washington 128
- West Virginia 29
- Wisconsin 67
- 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 4103 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!
October 2026
A vertical trail endurance series at Mohawk Mountain offering 12 to 84 hour looped events with individual and team FlexRelay options and clear lap and elevation targets.
Test your limits on a flat one mile loop at the Sussex County Fairgrounds. Choose from 6 to 72 hour timed races or certified marathon and 50K distances with full kitchen and shower access.
A memorial 5K in New Bern, NC with in-person and virtual options in early October. The race uses the Dragonfly trail at Martin Marietta Park and offers T-shirts, awards by age group, one water station, and light refreshments.
A self guided 50K point to point on the original South Yuba Campground to Bear Valley course, completed any time during October 2026 with self reported results.
Oktoberfest Trail Run in Farmersville, Texas offers 5k to 50k distances on the reclaimed Chaparral Trail through prairies and farmland. The event features marked aid stations, a cupless refill policy, and one post-race beverage per registrant with ID..
An in-person community event at Milly Chalet offering a 10 km trail run, shoe testing of Cadí and Kjerag 02, snacks, conversation, and a raffle supported by NNormal.
Timed trail event at Sand Creek Ranch in Los Olivos offering 3.4 mile loop options from 3 hours up to 48 hours, with on-course aid and free camping.
Ultramarathon event in Utah on October 2 and 3 2026 offering 100 mile, 50 mile, 55K and 25K races with a 50 mile qualifier for the 100.
A loop ultra in Mammoth Lakes on October 2, 2026, circling an ancient caldera with alpine, volcanic and high desert terrain plus cash prizes for top finishers.
Chip timed ultrarunning event in Lykens, PA on October 2–3, 2026 offering 24 hour, 12 hour and 6 hour races on a one mile mostly grass loop.
Experience a nighttime trail run at the Shelby Farms Cross Country Course with options for a 5K race or 2K fun run. This family friendly event supports youth athletics programs in Memphis.
A 110-mile Massanutten trail ultramarathon with 22,300 feet of elevation, a 48-hour limit, required second half crew support, limited course markings, and no medical coverage on course.
Annual cross country meet at the University of Arkansas with college, high school, and community races on October 2–3, 2026.
A weekend event combining trail running, catch and release fly fishing, and local craft beer in Yellow River State Forest, with proceeds supporting habitat restoration.
Frio Trio Zero Edition, October 2 to 4 2026 in Leakey Concan and Uvalde TX, combines trail runs, gravel races and river float trips with marked courses and aid stations.
STADIUMTREK at Nippert Stadium on October 2, 2026 features an individual challenge to complete 14,000 steps within a three hour window for 14ER status, plus a relay for teams of 2 to 4. Registration opens June 17, 2026 and the fee is $49.99.
Weekend women only outdoor summit at Cuivre River State Park with camping, trail runs, clinics and shared hosting costs; limited to 20 participants, Oct 2 to 4, 2026.
Community 5K and 1 mile fun run at Cornwall Elementary on October 2, 2026 with proceeds benefiting the school PTO.
A three-day event in San Rafael featuring an Olympic triathlon, Olympic relay, trail half marathon, a combined challenge and a kids fun event.
A community 5K with a new 1 mile run/walk in Socorro on October 2, with proceeds benefiting the Socorro High School Cross Country team.