Ultra races in Montana, United States — 2026 running calendar

Trail Rail Run

St. Regis, Montana, United States

20 Jun, 2026 (Sat)

$45.00 - $200.00

Trail running, Running

Ultra 30.9K 12.2K 6.1K +3

175-mile Pioneer Crossings Relay Race

Twin Bridges to Virginia City, Montana, United States

10 Jul, 2026 (Fri) – 11 Jul, 2026

$150.00

Running

Ultra

The Yellowstone Trail Marathon and Trail Races

West Yellowstone, Montana, United States

11 Jul, 2026 (Sat) – 01 Aug, 2026

$45.00 - $80.00

Running, Trail running

Marathon Half-Marathon 10K Ultra +5

HELENA OUTDOOR TRIATHLON (HOTri) Triathlon/Aqua-bike/Duathlon/Super Sprint beginner race!!

Helena, Montana, United States

12 Jul, 2026 (Sun)

$30.00 - $250.00

Triathlon, Aquabike, Duathlon, Running

15.7K 24.5K 48.9K 19.5K +4

Bob Marshall Trail Races

Seeley Lake, Montana, United States

18 Jul, 2026 (Sat)

$55.00 - $80.00

Trail running

Ultra 25K Marathon Half-Marathon +1

Headwaters Relay 2026

Bozeman, Montana, United States

31 Jul, 2026 (Fri) – 02 Aug, 2026

Running

Ultra

The Rut Mountain Runs

Big Sky, Montana, United States

11 Sep, 2026 (Fri) – 13 Sep, 2026

Free

Trail running, Running

Ultra Half-Marathon 4K 28.6K +4

Whitefish Trail Blazer

Whitefish, Montana, United States

03 Oct, 2026 (Sat) – 04 Oct, 2026

$10.00 - $125.00

Running

Ultra 49.9K Half-Marathon 10.5K +6

Wolf Creek Canyon Relay

Wolf Creek, Montana, United States

04 Oct, 2026 (Sun)

$40.00

Running

45.1K +1

Le Grizz Ultramarathon & Relay

Polebridge, Montana, United States

10 Oct, 2026 (Sat)

$35.00 - $150.00

Trail running, Running

Ultra 15K 5K

York 38 Special

Helena, Montana, United States

01 Jun, 2026 (Mon) – 15 Aug, 2026

$15.00 - $90.00

Running, Cycling

Ultra Half-Marathon +2