Race Discovery

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

28 events found

Malad Valley Marathon
Sep
12

Malad Valley Marathon

Malad City, Idaho, United States
$25.00 - $90.00
Running
Marathon Half-Marathon 10K 5K +1
Priest Lake Marathon logo
Sep
19

Priest Lake Marathon

Priest Lake, Idaho, United States
$60.00 - $115.00
Running
Ultra Marathon Half-Marathon 10K
St. Luke's FitOne 5K/10K/Half Marathon logo
Sep
26

St. Luke's FitOne 5K/10K/Half Marathon

Boise, Idaho, United States
$40.00 - $60.00
Running
5K 10K Half-Marathon
Hayden Lake Marathon logo
Oct
10

Hayden Lake Marathon

Hayden Lake, Idaho, United States
Free - $135.00
Running
Marathon Half-Marathon 10.5K 5K +2
Rush Creek Stampede logo
Oct
10

Rush Creek Stampede

Cambridge, Idaho, United States
$40.00 - $55.00
Running
Half-Marathon 5K 10K
City of Trees Marathon logo
Oct
11

City of Trees Marathon

Boise, Idaho, United States
$60.00 - $115.00
Running
Marathon Half-Marathon 10K 5K
Idaho Running Day logo
Oct
17

Idaho Running Day

Boise, Idaho, United States
$50.00 - $115.00
Running
Marathon Half-Marathon 10K 5K
Boise Half Marathon logo
Nov
14

Boise Half Marathon

Boise, Idaho, United States
$85.00
Running
Half-Marathon
Race to Robie Creek® logo
Apr
17

Race to Robie Creek®

Boise, Idaho, United States
$75.00
Running
Half-Marathon
Spring Dash logo
Apr
24

Spring Dash

Coeur d'Alene, Idaho, United States
Free - $75.00
Running
Half-Marathon 10K 5K Tot Trot +1
Boise River Marathon logo
May
02

Boise River Marathon

Boise, Idaho, United States
$35.00 - $60.00
Running
Marathon Half-Marathon 10K 5K +1
Ymca Famous Idaho Potato Marathon & Fun Runs logo
May
15

Ymca Famous Idaho Potato Marathon & Fun Runs

Boise, Idaho, United States
$35.00 - $90.00
Running
Marathon Half-Marathon 10K 5K