5K races in United States — 2026 trail running calendar

Oct

11

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

Saint Petersburg, Florida, United States

Trail running Running Swimming

5K 2.5K 1K 10K +7

Oct

11

Fall Fest Trail 5K

Beaver Falls, Pennsylvania, United States

Trail running

5K

Oct

10

Queen City Trail Run

Weslaco, Texas, United States

Trail running Running

16.1K 10K 5K 1.6K +1

Oct

10

2nd Annual Shauna Smith Heroes 5K Trail Run / 2K Trail Walk

Holland, Michigan, United States

Trail running

5K

Oct

10

Tortoise Trot 5K and Trail Run

Las Vegas, Nevada, United States

Running Trail running

5K 16.9K

Oct

10

Rock It in Chino Hills 5K & 10K

Brea, California, United States

Trail running

5K 10K

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

Love Never Ends Trail Run

Atoka, Oklahoma, United States

Trail running

Ultra 5K +4

Oct

10

Juniata Valley Trail Run

Mifflin, Pennsylvania, United States

Running Trail running

5K 1.6K Kids Fun Run

Oct

10

Deep Hollow Half Marathon & 5K Trail Race

Lynchburg, Virginia, United States

Trail running

Half-Marathon 5K

Oct

10

SpiritWalk & Warrior Run

Seattle, Washington, United States

Trail running Walking

5K 2K

Oct

10

Three Little Pigs 5K Trail Run

Pittsboro, North Carolina, United States

Trail running Running

5.1K Kids' Run