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Half Marathons in Idaho

  1. Races by State
  2. Idaho
  3. Half Marathon

Browse Half Marathon races in Idaho, including upcoming races and races up to one year past their event date. Sort by highest rating or number of reviews to elevate the most popular races.

For each Half Marathon race, you’ll find key details, finisher ratings and reviews, photos, videos, related articles, race-day weather data and a link to register.

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Showing Half Marathons in Idaho

Race to Robie Creek
Boise, ID | Apr 19, 2025

OVERALL

(4 ratings)

4
Spitfire Ultra Trail Challenge
Menan, ID | Apr 19, 2025

OVERALL

(2 ratings)

5
Spring Dash
Coeur d'Alene, ID | Apr 26, 2025

OVERALL

(1 rating)

3
Boise River Marathon
Boise, ID | May 3, 2025

OVERALL

(5 ratings)

3.8
Long Bridge Half Marathon, 10K & 5K
Sandpoint, ID | May 10, 2025

OVERALL

(1 rating)

4
Famous Idaho Potato Marathon
Boise, ID | May 17, 2025

OVERALL

(14 ratings)

3.6
Redfish Lake Lodge Memorial Weekend Run
Stanley, ID | May 24, 2025

OVERALL

(0 ratings)

0
Coeur d’Alene Marathon (CDA Marathon)
Coeur d'Alene, ID | May 25, 2025

OVERALL

(62 ratings)

4.6
City of Rocks Ultra Marathon
Almo, ID | May 31, 2025

OVERALL

(0 ratings)

0
Bear Lake Marathon Trifecta Idaho
St Charles, ID | Jun 5, 2025

OVERALL

(36 ratings)

4.2
Spirit of Magic Valley Half Marathon
Twin Falls, ID | Jun 7, 2025

OVERALL

(3 ratings)

4.3
Teton Dam Marathon
Newdale, ID | Jun 7, 2025

OVERALL

(3 ratings)

4.7
River of No Return Endurance Runs
Challis, ID | Jun 14, 2025

OVERALL

(0 ratings)

0
Boise Marathon
Boise, ID | Jun 21, 2025

OVERALL

(8 ratings)

2.9
Race the Wolf Ultramarathon & Trail Races
Sandpoint, ID | Jun 21–22, 2025

OVERALL

(0 ratings)

0
IRONMAN 70.3 Coeur d’Alene
Coeur d'Alene, ID | Jun 22, 2025

OVERALL

(2 ratings)

4.5
Christmas in July 5K, 10K & Half Marathon Boise
Boise, ID | Jul 12, 2025

OVERALL

(0 ratings)

0
Mesa Falls Marathon & Half Marathon
Ashton, ID | Jul 19, 2025

OVERALL

(35 ratings)

4.5
Idaho Falls Marathon, Half Marathon & 5K
Idaho Falls, ID | Jul 26, 2025

OVERALL

(12 ratings)

3.3
Pocatello Marathon
Pocatello, ID | Aug 30, 2025

OVERALL

(6 ratings)

4.2

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