Race Discovery

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

26 events found

Running for Children's Rights to Both Parents - 7 of 50 Half Marathons in 50 States - Idaho logo
Jul
18

Running for Children's Rights to Both Parents - 7 of 50 Half Marathons in 50 States - Idaho

Ashton, Idaho, United States
Running
Half-Marathon 5K
Mesa Falls Marathon logo
Jul
18

Mesa Falls Marathon

Ashton, Idaho, United States
Running
Marathon Half-Marathon 10K 5K +1
Christmas 5K/10K/Half Marathon in July - Idaho Falls logo
Jul
12

Christmas 5K/10K/Half Marathon in July - Idaho Falls

Idaho Falls, Idaho, United States
Running
5K 10K Half-Marathon +2
Christmas 5K/10K/Half Marathon in July - Boise logo
Jul
11

Christmas 5K/10K/Half Marathon in July - Boise

Boise, Idaho, United States
Running
5K 10K Half-Marathon +2
Boise Marathon logo
Jun
20

Boise Marathon

Boise, Idaho, United States
Running
Marathon Half-Marathon 10K 5K
Race the Wolf logo
Jun
20

Race the Wolf

Sandpoint, Idaho, United States
Trail running Running
8K 1.6K Marathon Half-Marathon
Spirit of Magic Valley Half Marathon - 10K - 5K - Kids 1 Mile logo
Jun
06

Spirit of Magic Valley Half Marathon - 10K - 5K - Kids 1 Mile

Twin Falls, Idaho, United States
Running
Half-Marathon 10K 5K
Run Bear Lake - Idaho
Jun
05

Run Bear Lake - Idaho

Paris, Idaho, United States
Running
Marathon Half-Marathon
Redfish Lake Lodge Memorial Weekend Run logo
May
23

Redfish Lake Lodge Memorial Weekend Run

Stanley, Idaho, United States
Running
1.6K 5K 10K Half-Marathon
CDA Marathon logo
May
23

CDA Marathon

Coeur d'Alene, Idaho, United States
Running
1.6K Marathon Half-Marathon 10K +3
YMCA Famous Idaho Potato Marathon & Fun Runs logo
May
16

YMCA Famous Idaho Potato Marathon & Fun Runs

Boise, Idaho, United States
Running
Marathon Half-Marathon 10K 5K
Long Bridge Half-Marathon logo
May
09

Long Bridge Half-Marathon

Sandpoint, Idaho, United States
Running
Half-Marathon 10K 5K