Ultras in Montana 2026 | Upcoming Races & Dates

There are 7 ultras in Montana scheduled for 2026. The next is the Le Grizz Ultramarathon & Relay in Polebridge on October 10. Montana ultras run primarily October through July.

Le Grizz Ultramarathon & Relay

Sat, Oct 10 · Polebridge, MT Polebridge

5K Run15K Run50 Mile Ultramarathon +1

From $35 Open Closing Soon

The 18th Annual Moose Chase Kids Race

Sun, Oct 11 · Livingston, MT Livingston

1K Moose Chase2.5k Moose Trot5k Moose Run +1

From $30 Open Closing Soon

Run for Your Life 5k & Kid's Run/Walk

Sat, Oct 17 · Bozeman, MT Bozeman

5K TIMEDVIRTUAL Run/Walk5K UNTIMED +1

From $12 Open Closing Soon

44th OSCR

Sat, Jan 30 · Seeley Lake, MT Seeley Lake

5K youth ski race10K nordic ski race20K Classic nordic ski race +2

From $30 Closed

175-mile Pioneer Crossings Relay Race

Fri, Jul 9 · Twin Bridges to Virginia City, MT Twin Bridges to Virginia City

Wild CardStandardUltra +3

From $110 Open

Big Sky Marathon

Sun, Jul 11 · Ennis, MT Ennis

Big Sky Marathon (Half)Big Sky Marathon (Half)Big Sky Marathon (Full) +2

From $75 Open

Madison Triathlon

Sat, Jul 24 · Ennis, MT Ennis

Madison Triathlon - Olympic

From $100 Closed

Ultras in Montana — 2026