Create Your Race Find EventsContact

Create

Run This
Races
Idaho
Boise
Half Marathon

Race calendar

Half Marathon Races in Boise, ID

8 upcoming Half Marathon races in Boise. Run This events are listed first.

Sort

Search all races

DistanceAll 5K 10K Half Marathon Marathon

Nearby citiesCoeur D Alene Sandpoint Nampa Cambridge Blackfoot Caldwell Eagle Emmett Garden City Hauser Hayden Lake Idaho Falls

8 races

Sat, Sep 26, 2026

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

Boise, ID

Outside5K10KMarathon

Sun, Oct 11, 2026

City of Trees Marathon

Boise, ID

OutsideMarathon10K5K

Sat, Oct 17, 2026

Idaho Running Day

Boise, ID

OutsideMarathon10K5K

Sat, Oct 24, 2026

YMCA Halloween Run presented by Micron

Boise, ID

OutsideMarathon5K1 mile

Own a race in Boise?

List it on Run This and it shows up right here, where runners are already looking. Run This is any race director's best friend and the most modern platform for your registration. Already listed? Claim it.

List your race

Sat, Nov 14, 2026

Boise Half Marathon

Boise, ID

OutsideMarathon

Sat, Apr 17, 2027

Race to Robie Creek®

Boise, ID

OutsideMarathon

Sun, May 2, 2027

Boise River Marathon

Boise, ID

OutsideMarathon10K5K

Sat, May 15, 2027

YMCA Famous Idaho Potato Marathon & Fun Runs

Boise, ID

OutsideMarathon10K5K

Don't lose this one.

Save any Boise, ID race to your calendar and we'll remind you when it matters.

Create your free account

Your whole running year, in one place.

Follow your friends, save Boise, ID races, and keep every start line in one calendar.

Create your free account

Other cities in Idaho

Coeur D Alene8 Sandpoint4 Nampa3 Cambridge2 Blackfoot1 Caldwell1 Eagle1 Emmett1 Garden City1 Hauser1 Hayden Lake1