5K races in United States — 2026 trail running calendar

Oct

10

Scouting's Meecheway 5K Trail Run - COLOR RUN VOL. 3 2026

Defiance, Ohio, United States

Trail running

5K

Oct

10

Suffer Better 10th Annual Fall Trail Runs

Pine, Colorado, United States

Trail running

Ultra 25K 5K

Oct

10

Swedish Mile Trail Run 2026

Mora, Minnesota, United States

Trail running Running

10K 5K 1.6K

Oct

10

The Mammoth 2026 - 100K / 50K / 25K / 10K / 5K and Mighty Mammoth 1K Fun Run

Glen Rose, Texas, United States

Trail running Running

Ultra 25K 10K 5K +3

Oct

10

SpiritWalk & Warrior Run

Seattle, Washington, United States

Trail running Walking

5K 2K

Oct

10

Tortoise Trot 5K and Trail Run

Las Vegas, Nevada, United States

Running Trail running

5K 16.9K

Oct

10

Trailway Trail Race

Somerville, Texas, United States

Trail running

Ultra Marathon Half-Marathon 10K +4

Oct

10

Unity Beach Swim - Aquathlon & Run Training Races (Oct )

Saint Petersburg, Florida, United States

Trail running Running Swimming

5K 2.5K 1K 10K +10

Oct

10

Oklahoma City Trail Running Festival

Oklahoma City, Oklahoma, United States

Trail running Running

4.8K 14.5K 33.8K 49.9K +1

Oct

10

Three Little Pigs 5K Trail Run

Pittsboro, North Carolina, United States

Trail running Running

5.1K Kids' Run

Oct

09

West Virginia Trilogy

Circleville, West Virginia, United States

Trail running Running

Ultra Half-Marathon 5K +1

Oct

09

Champoeg Invitational Open Race

Saint Paul, Oregon, United States

Trail running

5K