Race Discovery

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

28 events found

Sandpoint Marathon
May
28

Sandpoint Marathon

Sandpoint, Idaho, United States
Running
5K 10K Half-Marathon Marathon
Cda Marathon logo
May
29

Cda Marathon

Coeur d'Alene, Idaho, United States
Free - $100.00
Running
1.6K Marathon Half-Marathon 10K +4
Pocatello Marathon logo
Sep
04

Pocatello Marathon

Pocatello, Idaho, United States
Free - $40.00
Running Wheelchair
Marathon Half-Marathon 10K 5K +8
Popsicle 5K/10K/Half - Boise logo
Aug
23

Popsicle 5K/10K/Half - Boise

Boise, Idaho, United States
Running
5K 10K Half-Marathon +5
Eternal Surrender Half Marathon
Aug
22

Eternal Surrender Half Marathon

Coeur d'Alene, Idaho, United States
$35.00
Running
5K 10K Half-Marathon +1
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