Half-Marathon races in Montana, United States — 2026 trail running calendar

Sep

26

Hiawatha Fall Trail Run

Taft, Montana, United States

$95.00 - $140.00

Trail running

Marathon Half-Marathon 10K

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

Sep

25

The Divide Trail Race

Butte, Montana, United States

$70.00 - $80.00

Trail running

Ultra 25K Marathon Half-Marathon

Aug

16

Nitty Gritty Off Road Race

Red Lodge, Montana, United States

Trail running

Half-Marathon Marathon 6.9K +4

Aug

01

Hurl Elkhorn 50 Mile, 50K, and 13.1 Mile Runs

Clancy, Montana, United States

Trail running

Ultra Half-Marathon

Jun

20

Herron Half Marathon, 10K and 5K Trail Run

Kalispell, Montana, United States

Trail running

Half-Marathon 10K 5K

May

14

Pengelly Double and Single Dips

Missoula, Montana, United States

Running Trail running

Half-Marathon 10K