United States
- Alabama 56
- Alaska 16
- Arizona 110
- Arkansas 45
- California 364
- Colorado 137
- Connecticut 43
- Delaware 14
- District of Columbia 15
- Florida 176
- Georgia 101
- Hawaii 9
- Idaho 15
- Illinois 74
- Indiana 73
- Iowa 35
- Kansas 36
- Kentucky 73
- Louisiana 33
- Maine 28
- Maryland 67
- Massachusetts 64
- Michigan 105
- Minnesota 48
- Mississippi 16
- Missouri 70
- Montana 34
- Nebraska 20
- Nevada 26
- New Hampshire 30
- New Jersey 73
- New Mexico 28
- New York 148
- North Carolina 167
- North Dakota 2
- Ohio 99
- Oklahoma 40
- Oregon 85
- Pennsylvania 195
- Puerto Rico 1
- Rhode Island 10
- South Carolina 71
- South Dakota 6
- Tennessee 76
- Texas 247
- Utah 69
- Vermont 23
- Virginia 154
- Washington 128
- West Virginia 30
- Wisconsin 69
- 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 4133 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
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.
The second annual Breast Run Ever is a community 5K at the Virginia Beach Sportsplex on October 2, 2026, with pink race shirts, finisher medals, and all profits donated to the Pink Fund.
Grove City College Homecoming hosts an alumni Cross Country 5k and a 3k fun run with timing, music, and a postrace chili cookout.
Trail runs near Bear Valley and Lake Spaulding with a 50K and a 24 mile option. The 50K includes a summit loop with about 5,700 ft of gain, rocky sections on Signal Peak OHV Road, cupless aid stations, and finisher medals.
A technical 13.1-mile trail half marathon in Steele Creek Park with over 2,000 ft of climbing, limited to 100 runners; proceeds support park trail improvements.
Multi-day Spartan obstacle weekend at Nevada State University near Las Vegas with Sprint and Super races, kids events, workshops, Hurricane Heat formats, and spectator access.
A 100-mile endurance run through the San Gabriel backcountry with an updated out-and-back course from Loma Alta Park, official training runs, and pre-race logistics the day before.