10K races in United States — 2026 trail running calendar

May

17

CityTrail Loppet

Minneapolis, Minnesota, United States

Trail running

16.1K 10K 5K

May

17

First State Trail Race

Wilmington, Delaware, United States

Trail running

10K 24.9K 49.9K

May

17

Hell Hath No Hurry Preview Run - May 17, 2026

Carnegie, Pennsylvania, United States

Trail running

10K

May

16

Sunderbruch B&B Trail Races

Davenport, Iowa, United States

Trail running

10K 5K

May

16

Soaring Eagle Trail Run

Sammamish, Washington, United States

Trail running Running

5K Half-Marathon 10K 1K +2

May

16

Mad Maple Trail Races @ Hueston Woods

College Corner, Ohio, United States

$40.00 - $70.00

Trail running

Ultra Half-Marathon 10K 5K +12

May

16

Conestoga Crusher 5K & 10k Trail Race & Kids Trail Race

Holtwood, Pennsylvania, United States

Trail running

10K 5K 2.4K

May

16

Sehgahunda Trail Marathon, Marathon Relay & Vale of Three Falls

Portageville, New York, United States

Trail running

Marathon Ultra 5K 10K +3

May

16

Blue Heron 10k

Stearns, Kentucky, United States

Trail running

9.8K

May

16

Hueston Woods Trail Race

Hueston Woods State Park, Ohio, United States

$40.00 - $100.00

Trail running

Half-Marathon 10K 5K 2026 Fall Pack Pass (Entry into ALL 2026 Events) Valid Until 12/31 +13

May

14

Pengelly Double and Single Dips

Missoula, Montana, United States

Running Trail running

Half-Marathon 10K

May

09

The Little Miami Trail Challenge @ John Bryan

Yellow Springs, Ohio, United States

$40.00 - $75.00

Trail running

Half-Marathon 10K 5K 20K +12