United States
- Alabama 47
- Alaska 22
- Arizona 104
- Arkansas 27
- California 344
- Colorado 137
- Connecticut 46
- Delaware 8
- District of Columbia 11
- Florida 135
- Georgia 107
- Hawaii 3
- Idaho 25
- Illinois 83
- Indiana 59
- Iowa 38
- Kansas 34
- Kentucky 43
- Louisiana 29
- Maine 33
- Maryland 60
- Massachusetts 51
- Michigan 109
- Minnesota 58
- Mississippi 16
- Missouri 69
- Montana 32
- Nebraska 17
- Nevada 31
- New Hampshire 45
- New Jersey 54
- New Mexico 28
- New York 152
- North Carolina 129
- North Dakota 1
- Ohio 107
- Oklahoma 28
- Oregon 71
- Pennsylvania 176
- Puerto Rico
- Rhode Island 11
- South Carolina 54
- South Dakota 11
- Tennessee 69
- Texas 181
- Utah 86
- Vermont 34
- Virginia 149
- Washington 111
- West Virginia 25
- Wisconsin 71
- Wyoming 12
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
Two trail races at Catalina State Park in Tucson on October 4 2026, with a 9.3 mile out and back on the 50 Year Trail and a 5K on the Nature and Bridal Trails.
100K trail race in North Bend, PA with over 13,400 ft elevation gain, a lollipop course that reverses yearly, no crews or pacers, and a 19 hour time limit.
Trail 5K and 10K in South Williamsport on October 4, 2026 featuring mixed singletrack, one aid station at Green Bridge, with proceeds to the Think Big Pediatric Cancer Fund.
A 26.4 mile trail marathon in Ashford, CT on October 4, 2026 with rugged terrain and a two-person relay option.
Oct 4, 2026 Moscow Mountain Madness offers 50K, half marathon and 5 mile trail races on mostly single track terrain around Moscow Mountain in Moscow, ID.
A flat, scenic marathon and half-marathon on the Greenbrier River Trail in Pocahontas County, West Virginia, held October 4, 2026, with proceeds supporting trail maintenance.
Keene Family YMCA Fall Foliage Trail Races feature 5K and 10K trail courses starting and finishing at the Keene YMCA, with chip timing, age-group prizes, and proceeds supporting YMCA programs and access.
A Halloween themed community event in Aspen on October 4, 2026, with a timed 5.6K run and a 1 mile walk around Koch Park and Marolt open space. Leashed dogs are welcome and net proceeds benefit the Friends of the Aspen Animal Shelter.
Join the annual Run Stanley event at Stanley Park for a variety of trail races including a 5K K9 run and an accessible 1 mile stroll. Support local wildlife sanctuary maintenance while enjoying a community day in the park.
Experience a unique trail run through 1600 acres of former prison grounds at Laurel Hill Park. Choose between 5.4 or 10 mile distances on scenic singletrack featuring historic guard towers and open meadows.
Trail races at Fallen Leaf Lake near South Lake Tahoe featuring a half marathon, 10K, 5K and a noncompetitive half mile for children, aid stations and recycled shirts.
Experience a technical trail event in Highlandville featuring 5k, 10k, and half marathon distances. Participants enjoy a hilly course followed by a post race celebration with local craft beer and walking tacos.
A four-race trail series in Colorado Springs from October 4 to November 15, 2026, with distances from 3.8 to 7.3 miles and a full series registration option.
A 5K on shaded eucalyptus horse trails at Ernie Howlett Park in Palos Verdes Peninsula on October 4, 2026. In person and virtual options are available, plus a fundraising route that waives the fee with at least $100 raised for Strides in Recovery.
A 25K trail race in Corvallis OR on October 4 2026, part of the Corvallis Trail Series with proceeds supporting local trail work and rescue and shoe assistance programs.
Mountain trail races in Bald Eagle State Forest featuring a 13.6 mile half and a 6.4 mile 10K on steep, technical singletrack with aid stations and post-race soup.
Baker Lake Classic 25k on Sunday October 4, 2026 is a 25k event organized by NW Endurance Events. Registration closes October 3 and the entry fee is $80 with a race shirt offered for $25.
A 50K trail ultramarathon around Blue Marsh Lake near Reading PA with a 9 hour limit, seven themed aid stations, camping, and a four leg relay option.
Experience the scenic Nocatee Greenway Trails in Ponte Vedra Beach with race distances including 10 miles, 10K, and 5K. This event features road and trail running alongside a dedicated 5K ruck and virtual race options.
Trail runs at Jefferson Memorial Forest with an 8-mile route and a 5-mile option, cupless hydration, on-course water for the 8 miler, restroom facilities, awards for overall male and female, and a virtual option.