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    Half Marathon Races in Idaho

    17 upcoming Half Marathon races across Idaho. Run This events are listed first — pick a city below to narrow it down.

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    Cities in IdahoBoiseCoeur D Alene

    17 races

    Sat, Sep 26, 2026

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

    Boise, ID

    Outside5K10KMarathon

    Sat, Oct 10, 2026

    Hayden Lake Marathon

    Hayden Lake, ID

    OutsideMarathon6.5 mi5K805 m

    Sat, Oct 10, 2026

    Rush Creek Stampede

    Cambridge, ID

    OutsideMarathon5K10K

    Sun, Oct 11, 2026

    City of Trees Marathon

    Boise, ID

    OutsideMarathon10K5K

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    Sat, Oct 17, 2026

    Idaho Running Day

    Boise, ID

    OutsideMarathon10K5K

    Sat, Oct 24, 2026

    Haunted Half Marathon and 5k by Run the Undergrad

    Rexburg, ID

    Outside5KMarathon

    Sat, Oct 24, 2026

    Eternal Surrender Half Marathon

    Coeur D Alene, ID

    OutsideMarathon5K10K

    Sat, Oct 24, 2026

    YMCA Halloween Run presented by Micron

    Boise, ID

    OutsideMarathon5K1 mile

    Sun, Oct 25, 2026

    Halloween Hustle

    Coeur d'Alene, ID

    OutsideMarathon10K5K805 m

    Sat, Nov 14, 2026

    Boise Half Marathon

    Boise, ID

    OutsideMarathon

    Sat, Apr 17, 2027

    Race to Robie Creek®

    Boise, ID

    OutsideMarathon

    Sat, Apr 24, 2027

    Spring Dash

    Coeur d'Alene, ID

    OutsideMarathon10K5K

    Sun, May 2, 2027

    Boise River Marathon

    Boise, ID

    OutsideMarathon10K5K

    Sat, May 15, 2027

    YMCA Famous Idaho Potato Marathon & Fun Runs

    Boise, ID

    OutsideMarathon10K5K

    Sat, May 29, 2027

    CDA Marathon

    Coeur d'Alene, ID

    OutsideMarathon10K5K1 mile

    Fri, Jun 4, 2027

    Sandpoint Marathon

    Sandpoint, ID

    Outside5K10KMarathon

    Sat, Sep 4, 2027

    27th Annual Pocatello Marathon

    Pocatello, ID

    OutsideMarathon10K5K1 mile

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    Half Marathon races by city in Idaho

    Boise8Coeur D Alene4