United States
- Alabama 47
- Alaska 22
- Arizona 104
- Arkansas 27
- California 344
- Colorado 137
- Connecticut 46
- Delaware 9
- District of Columbia 11
- Florida 135
- Georgia 107
- Hawaii 3
- Idaho 25
- Illinois 87
- Indiana 62
- Iowa 43
- Kansas 34
- Kentucky 43
- Louisiana 29
- Maine 33
- Maryland 60
- Massachusetts 51
- Michigan 114
- Minnesota 58
- Mississippi 16
- Missouri 70
- Montana 37
- Nebraska 18
- Nevada 31
- New Hampshire 45
- New Jersey 54
- New Mexico 28
- New York 154
- North Carolina 129
- North Dakota 1
- Ohio 111
- Oklahoma 28
- Oregon 71
- Pennsylvania 179
- 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 25
- Wisconsin 73
- Wyoming 14
Trail Running Calendar United States 2026-2027
Explore the best trail runs in the United States for 2026-2027! Our updated list features 3937 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
Multiple ultrarunning events near Salt Lake City in early October 2026, including 100, 50, 55K, and 25K courses; top 50 Miler finishers earn Bear 100 entries.
THE MAMMOTH on October 2, 2026 in Mammoth Lakes CA is a loop footrace around a volcanic caldera with alpine lakes, volcanic terrain and a Mammoth Mountain summit at 11,053 feet.
Chip timed ultra event in Lykens PA with 24 hour, 12 hour and 6 hour formats on a one mile grass loop, aid stations, and trackside camping.
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 trail ultramarathon in the Massanutten range with about 22,300 feet of elevation gain, a 48-hour limit, required second-half crew support, and multiple staffed and unattended aid stations.
A community cross-country festival in Fayetteville on October 3, 2026, featuring 4K and 8K loops plus a Friday 1 mile Pepper Dash. Registrations are treated as donations to a 501c3 that supports local high school programs.
Multi day event in Harpers Ferry, Iowa combining trail running, fly fishing and craft beer while directing funds to local fish habitat restoration.
Three day multi sport festival in the Frio Valley near Leakey TX with trail runs, gravel and mountain bike races, paddleboarding, river floats, and youth events.
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.
A free weekend event for women at Cuivre River State Park featuring clinics, camping, hikes, a night trail activity and shared meals; attendance is capped at 20.
A community event at Cornwall Elementary with a 5K and a 1 mile fun run on the Lebanon County Rail Trail. The non-timed event includes a free family festival after the runs with food and an outdoor movie, with proceeds to the school PTO.
Multi-day event at McNear’s Beach Park in San Rafael featuring an Olympic triathlon, relay, a kids triathlon, a trail half marathon, and a combined challenge.
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 13.1 mile trail half marathon at Steele Creek Park in Bristol, TN, featuring technical single track, steep climbs, creek crossings and more than 2,000 feet of elevation gain. Proceeds support park trail improvements and top finishers receive awards..
Obstacle course weekend at Nevada State University near the Las Vegas Strip with Sprint and Super races, kids events, workshops, and Hurricane Heat formats.
A 100 mile endurance run through the San Gabriel backcountry, held since 1986; the 2026 edition uses an out and back course from Loma Alta Park.
A fall trail running event in Moab, Utah offering 15K, half marathon, marathon and 50K courses through red cliffs and desert meadows. The event uses cup less aid stations and includes free base camp camping for participants and family.
A marathon and half marathon through scenic Leavenworth, Washington, featuring riverfront trails, Icicle Canyon, an Enchantment Park finish, USATF Boston Qualifier certification, and on-course aid and medical support.
A Spartan obstacle weekend at Neal Farms near Nashville offering Sprint, Super, kids races, workshops and multi-hour Hurricane Heats across rolling fields and woods.
Experience Minnesota's largest state park on a flat trail course at St. Croix State Park. Choose from four distances including a 100K ultra featuring a climb up a historic fire tower.