5K races in United States — 2026 trail running calendar

Oct

03

Mapleton XC Fall Classic

Ashland, Ohio, United States

Trail running

1.6K 5K 3.2K +1

Oct

03

Deam Lake Loop Trail Run

Borden, Indiana, United States

Trail running

10K 5K

Oct

03

S'more Fun Trail Run

Baraboo, Wisconsin, United States

Trail running

1.6K 5K 10K Half-Marathon +1

Oct

03

Fall into Fall Trail 5k Run/Walk

Janesville, Wisconsin, United States

Trail running Walking

5K 3.9K

Oct

03

Run-a-Muck with Willistown Conservation Trust

Newtown Square, Pennsylvania, United States

Trail running Walking

5K 2.4K +4

Oct

03

Potomac Shores Trail Fun Run

Dumfries, Virginia, United States

Trail running

5K 10K

Oct

03

RAF Trail Race Series

Bruceton Mills, West Virginia, United States

Running Trail running

Ultra 25K 10K 5K +6

Oct

03

IronPooch Bolton Valley, Vermont -

Richmond, Vermont, United States

Trail running Obstacle race Running

9.7K 4.8K Non-Racing Participants & Attendees

Oct

03

Head For The Hills!

Moreland Hills, Ohio, United States

Running Trail running

5K 2.4K

Oct

03

North Kingstown Firefighters Association Blazing Trail 5K

North Kingstown, Rhode Island, United States

Trail running

5K

Oct

03

Lapham Peak Colorama Run/Walk

Delafield, Wisconsin, United States

Trail running Walking Running

5K 10K 1K

Oct

03

Night Owl 5k, 10k and the 6 hour shuffle

Lake Elmo, Minnesota, United States

Trail running

10K 5K