Clear All
Half Marathons Near Idaho
Showing the next 50 runs that match your filters
Featured
Coeur d'Alene Marathon
Get 10% Off - Use Code RUNGUIDES2026
Date: May 24, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Coeur d'Alene, Idaho
Featured
Windermere Marathon
Get 10% Off - Use Code RUNGUIDES2026
Date: May 17, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Spokane, Washington
Ogden Marathon
Date: May 16, 2026 - Saturday
Size: 5,000 - 10,000 participants
Location: Ogden, Utah
Timp Trail Marathon
Date: May 16, 2026 - Saturday
Size: 100 - 500 participants
Location: Orem, Utah
Whitefish Marathon, Half Marathon, and 5K
Date: May 16, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Whitefish, Montana
Are you organizing a running event?
YMCA Famous Idaho Potato Marathon
Date: May 16, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Boise, Idaho
Windermere Marathon
Get 10% Off - Use Code RUNGUIDES2026
Date: May 17, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Spokane, Washington
Beaverhead Marathon & Half Marathon
Date: May 23, 2026 - Saturday
Size: 1 - 100 participants
Location: Dillon, Montana
Coeur d'Alene Marathon
Get 10% Off - Use Code RUNGUIDES2026
Date: May 24, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: Coeur d'Alene, Idaho
Jaffray Off Road Mayhem
Date: May 30, 2026 - Saturday
Size: 100 - 500 participants
Location: Jaffray, British Columbia
Run the 509
Get 5% Off - Use Code RunGuides5
Date: May 31, 2026 - Sunday
Size: 100 - 500 participants
Location: Deer Park, Washington
Bear Lake Wyoming Marathon
Date: Jun 4, 2026 - Thursday
Size: 100 - 500 participants
Location: Cokeville, Wyoming
Utah Valley Marathon
Date: Jun 5-6, 2026 - Friday to Saturday
Size: 1,000 - 5,000 participants
Location: Orem, Utah
Bear Lake Idaho Marathon
Date: Jun 5, 2026 - Friday
Size: 100 - 500 participants
Location: Bear Lake County, Idaho
Bear Lake Utah Marathon
Date: Jun 5, 2026 - Friday
Size: 100 - 500 participants
Location: Garden City, Utah
Grand Teton Half Marathon & 5K
Get $10 Off - Use Code VRRUNGUIDES
Date: Jun 5-6, 2026 - Friday to Saturday
Size: 1,000 - 5,000 participants
Location: Moose Wilson Road, Wyoming
Bear Paw Marathon
Date: Jun 6, 2026 - Saturday
Size: 1 - 100 participants
Location: Havre, Montana
Spirit of Magic Valley Runs
Date: Jun 6, 2026 - Saturday
Size: 100 - 500 participants
Location: Twin Falls, Idaho
Pengelly Double Dip & Bob Hayes Single Dip
Date: Jun 7, 2026 - Sunday
Size: 100 - 500 participants
Location: Missoula County, Montana
Yellowstone Half Marathon & 5K
Date: Jun 12-13, 2026 - Friday to Saturday
Size: 1,000 - 5,000 participants
Location: West Yellowstone, Montana
Governor's Cup Marathon
Date: Jun 13, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Helena, Montana
YMCA River Run
Date: Jun 13, 2026 - Saturday
Size: 100 - 500 participants
Location: Medicine Hat, Alberta
Round Valley Rambler Half Marathon & 7K
Date: Jun 13, 2026 - Saturday
Size: 100 - 500 participants
Location: Summit County, Utah
Drop13 Big Cottonwood Canyon Half Marathon
Date: Jun 13, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Holladay, Utah
Mountain to Meadow
Date: Jun 14, 2026 - Sunday
Size: 100 - 500 participants
Location: Lolo, Montana
Millarville "Run To The Farmers Market" Half Marathon
Date: Jun 20, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Black Diamond, Alberta
Runtastic TIMP
Date: Jun 20, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: American Fork, Utah
Race The Wolf
Date: Jun 20-21, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Sandpoint, Idaho
Montana Spartan Weekend
Date: Jun 20-21, 2026 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Sedan, Montana
Boise Marathon
Date: Jun 20, 2026 - Saturday
Size: 100 - 500 participants
Location: Boise, Idaho
Missoula Marathon
Date: Jun 27-28, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: Missoula, Montana
Glacier Half Marathon
Get $10 Off - Use Code VRRUNGUIDES
Date: Jun 27, 2026 - Saturday
Size: 500 - 1,000 participants
Location: North Browning, Montana
Hobbler Half Marathon
Date: Jul 11, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Springville, Utah
Sinister 7 Ultra
Date: Jul 11-12, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: Crowsnest Pass, Alberta
Utah Spartan Weekend
Date: Jul 11-12, 2026 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Weber County, Utah
Yellowstone Half Marathon and Trail Races
Date: Jul 11, 2026 - Saturday
Size: 1 - 100 participants
Location: West Yellowstone, Montana
Christmas 5K/10K/Half Marathon in July - Boise
Date: Jul 11, 2026 - Saturday
Size: 100 - 500 participants
Location: Boise, Idaho
Mesa Falls Marathon
Date: Jul 18, 2026 - Saturday
Size: 100 - 500 participants
Location: Ashton, Idaho
Bob Marshall Trail Races
Date: Jul 18, 2026 - Saturday
Size: 1 - 100 participants
Location: Seeley Lake, Montana
Deseret News Marathon
Date: Jul 24, 2026 - Friday
Size: 1,000 - 5,000 participants
Location: Salt Lake City, Utah
Speedgoat Mountain Races by UTMB
Date: Jul 24-25, 2026 - Friday to Saturday
Size: 500 - 1,000 participants
Location: Sandy, Utah
Handcart Days Races
Date: Jul 25, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Bountiful, Utah
High Uinta Half Marathon
Date: Jul 25, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Kamas, Utah
Headwaters Bank Run
Date: Jul 25, 2026 - Saturday
Size: 1 - 100 participants
Location: Three Forks, Montana
Idaho Falls Marathon
Date: Jul 25, 2026 - Saturday
Size: 100 - 500 participants
Location: Idaho Falls, Idaho
Park City Trail Series Half Marathon
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Park City, Utah
Catherine Creek Classic
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Union, Oregon
Yellowstone Half Marathon and Trail Races
Date: Aug 1, 2026 - Saturday
Size: 1 - 100 participants
Location: West Yellowstone, Montana
Luau Run Half Marathon, 10K, 5K
Date: Aug 6, 2026 - Thursday
Size: 100 - 500 participants
Location: Farmington, Utah
Skyline Mountain Marathon
Date: Aug 8, 2026 - Saturday
Size: 100 - 500 participants
Location: Eden, Utah
Loop the Lake
Date: Aug 8, 2026 - Saturday
Size: 100 - 500 participants
Location: Invermere, British Columbia
Runtastic HEBER
Date: Aug 8, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Heber City, Utah
