5K races in United States — 2026 trail running calendar

Jul

10

Yellowstone Park Trail Races

West Yellowstone, Montana, United States

$45.00 - $80.00

Trail running Running

Marathon Half-Marathon Ultra 25K +2

Jul

10

Montana Trail Series

West Yellowstone, Montana, United States

$45.00 - $80.00

Trail running

Marathon Half-Marathon Ultra 25K +17

Jul

17

Bob Marshall Trail Races

Seeley Lake, Montana, United States

$45.00 - $80.00

Trail running

Ultra 25K Marathon Half-Marathon +2

Aug

07

Highlander Assault Obstacle Race

Pingree Grove, Illinois, United States

$45.00 - $115.00

Obstacle race Trail running

Ultra 15K 5K 3K +37

Aug

07

MKK's Rugged Race Presented by Independence Bank

Owensboro, Kentucky, United States

$20.00 - $50.00

Obstacle race Trail running Running

5K 10K +4

Aug

22

Thunder Chicken Squatch Trail Jamboree

Branchville, New Jersey, United States

Free - $70.00

Trail running

5K 10K 27.4K Hardship Entry

Oct

31

The Next Loop Endurance Series - New England

Wrentham, Massachusetts, United States

$90.00

Trail running

5K

Nov

27

Squatchy Leftovers

West Orange, New Jersey, United States

Free - $85.00

Trail running

1.6K 5K Ultra 25K +2

May

11

Mighty Mountain Run - 5k 10K

Sophia, North Carolina, United States

$35.00 - $45.00

Trail running

5K 10K

Sep

03

Run for Thorncroft & 1-Mile Move-As-You-Please

Malvern, Pennsylvania, United States

Trail running Running

5K 1.6K

Aug

30

Big Horse Vineyards 5K

Lewistown, Illinois, United States

Trail running Running

5K 1.6K +1

Aug

30

Sweat Bar Fitness 5&5 Splash & Dash at Settlers Cabin Wave Pool & Park

Pittsburgh, Pennsylvania, United States

Swimrun Trail running

Individual Adult Splash and Dash - Ages 18 and over Relay Team for Splash and Dash 5.1K Individual Youth Splash and Dash - Ages 17 and under